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    <xhtml:link rel="alternate" hreflang="en"      href="https://www.congenitalheartcompass.com/en/average-cost-adult-congenital-heart-disease-consultation"/>
    <xhtml:link rel="alternate" hreflang="es"      href="https://www.congenitalheartcompass.com/es/average-cost-adult-congenital-heart-disease-consultation"/>
    <xhtml:link rel="alternate" hreflang="zh-Hans" href="https://www.congenitalheartcompass.com/zh/average-cost-adult-congenital-heart-disease-consultation"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://www.congenitalheartcompass.com/en/average-cost-adult-congenital-heart-disease-consultation"/>
  </url>
  <url>
    <loc>https://www.congenitalheartcompass.com/es/average-cost-adult-congenital-heart-disease-consultation</loc>
    <lastmod>2026-05-09</lastmod><changefreq>monthly</changefreq><priority>0.8</priority>
    <xhtml:link rel="alternate" hreflang="en"      href="https://www.congenitalheartcompass.com/en/average-cost-adult-congenital-heart-disease-consultation"/>
    <xhtml:link rel="alternate" hreflang="es"      href="https://www.congenitalheartcompass.com/es/average-cost-adult-congenital-heart-disease-consultation"/>
    <xhtml:link rel="alternate" hreflang="zh-Hans" href="https://www.congenitalheartcompass.com/zh/average-cost-adult-congenital-heart-disease-consultation"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://www.congenitalheartcompass.com/en/average-cost-adult-congenital-heart-disease-consultation"/>
  </url>
  <url>
    <loc>https://www.congenitalheartcompass.com/zh/average-cost-adult-congenital-heart-disease-consultation</loc>
    <lastmod>2026-05-09</lastmod><changefreq>monthly</changefreq><priority>0.8</priority>
    <xhtml:link rel="alternate" hreflang="en"      href="https://www.congenitalheartcompass.com/en/average-cost-adult-congenital-heart-disease-consultation"/>
    <xhtml:link rel="alternate" hreflang="es"      href="https://www.congenitalheartcompass.com/es/average-cost-adult-congenital-heart-disease-consultation"/>
    <xhtml:link rel="alternate" hreflang="zh-Hans" href="https://www.congenitalheartcompass.com/zh/average-cost-adult-congenital-heart-disease-consultation"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://www.congenitalheartcompass.com/en/average-cost-adult-congenital-heart-disease-consultation"/>
  </url>

  <url>
    <loc>https://www.congenitalheartcompass.com/en/support-groups-for-adults-with-congenital-heart-defects</loc>
    <lastmod>2026-05-09</lastmod><changefreq>monthly</changefreq><priority>0.7</priority>
    <xhtml:link rel="alternate" hreflang="en"      href="https://www.congenitalheartcompass.com/en/support-groups-for-adults-with-congenital-heart-defects"/>
    <xhtml:link rel="alternate" hreflang="es"      href="https://www.congenitalheartcompass.com/es/support-groups-for-adults-with-congenital-heart-defects"/>
    <xhtml:link rel="alternate" hreflang="zh-Hans" href="https://www.congenitalheartcompass.com/zh/support-groups-for-adults-with-congenital-heart-defects"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://www.congenitalheartcompass.com/en/support-groups-for-adults-with-congenital-heart-defects"/>
  </url>
  <url>
    <loc>https://www.congenitalheartcompass.com/es/support-groups-for-adults-with-congenital-heart-defects</loc>
    <lastmod>2026-05-09</lastmod><changefreq>monthly</changefreq><priority>0.7</priority>
    <xhtml:link rel="alternate" hreflang="en"      href="https://www.congenitalheartcompass.com/en/support-groups-for-adults-with-congenital-heart-defects"/>
    <xhtml:link rel="alternate" hreflang="es"      href="https://www.congenitalheartcompass.com/es/support-groups-for-adults-with-congenital-heart-defects"/>
    <xhtml:link rel="alternate" hreflang="zh-Hans" href="https://www.congenitalheartcompass.com/zh/support-groups-for-adults-with-congenital-heart-defects"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://www.congenitalheartcompass.com/en/support-groups-for-adults-with-congenital-heart-defects"/>
  </url>
  <url>
    <loc>https://www.congenitalheartcompass.com/zh/support-groups-for-adults-with-congenital-heart-defects</loc>
    <lastmod>2026-05-09</lastmod><changefreq>monthly</changefreq><priority>0.7</priority>
    <xhtml:link rel="alternate" hreflang="en"      href="https://www.congenitalheartcompass.com/en/support-groups-for-adults-with-congenital-heart-defects"/>
    <xhtml:link rel="alternate" hreflang="es"      href="https://www.congenitalheartcompass.com/es/support-groups-for-adults-with-congenital-heart-defects"/>
    <xhtml:link rel="alternate" hreflang="zh-Hans" href="https://www.congenitalheartcompass.com/zh/support-groups-for-adults-with-congenital-heart-defects"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://www.congenitalheartcompass.com/en/support-groups-for-adults-with-congenital-heart-defects"/>
  </url>

  <url>
    <loc>https://www.congenitalheartcompass.com/en/latest-surgical-advancements-adult-congenital-heart-disease</loc>
    <lastmod>2026-05-09</lastmod><changefreq>monthly</changefreq><priority>0.8</priority>
    <xhtml:link rel="alternate" hreflang="en"      href="https://www.congenitalheartcompass.com/en/latest-surgical-advancements-adult-congenital-heart-disease"/>
    <xhtml:link rel="alternate" hreflang="es"      href="https://www.congenitalheartcompass.com/es/latest-surgical-advancements-adult-congenital-heart-disease"/>
    <xhtml:link rel="alternate" hreflang="zh-Hans" href="https://www.congenitalheartcompass.com/zh/latest-surgical-advancements-adult-congenital-heart-disease"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://www.congenitalheartcompass.com/en/latest-surgical-advancements-adult-congenital-heart-disease"/>
  </url>
  <url>
    <loc>https://www.congenitalheartcompass.com/es/latest-surgical-advancements-adult-congenital-heart-disease</loc>
    <lastmod>2026-05-09</lastmod><changefreq>monthly</changefreq><priority>0.8</priority>
    <xhtml:link rel="alternate" hreflang="en"      href="https://www.congenitalheartcompass.com/en/latest-surgical-advancements-adult-congenital-heart-disease"/>
    <xhtml:link rel="alternate" hreflang="es"      href="https://www.congenitalheartcompass.com/es/latest-surgical-advancements-adult-congenital-heart-disease"/>
    <xhtml:link rel="alternate" hreflang="zh-Hans" href="https://www.congenitalheartcompass.com/zh/latest-surgical-advancements-adult-congenital-heart-disease"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://www.congenitalheartcompass.com/en/latest-surgical-advancements-adult-congenital-heart-disease"/>
  </url>
  <url>
    <loc>https://www.congenitalheartcompass.com/zh/latest-surgical-advancements-adult-congenital-heart-disease</loc>
    <lastmod>2026-05-09</lastmod><changefreq>monthly</changefreq><priority>0.8</priority>
    <xhtml:link rel="alternate" hreflang="en"      href="https://www.congenitalheartcompass.com/en/latest-surgical-advancements-adult-congenital-heart-disease"/>
    <xhtml:link rel="alternate" hreflang="es"      href="https://www.congenitalheartcompass.com/es/latest-surgical-advancements-adult-congenital-heart-disease"/>
    <xhtml:link rel="alternate" hreflang="zh-Hans" href="https://www.congenitalheartcompass.com/zh/latest-surgical-advancements-adult-congenital-heart-disease"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://www.congenitalheartcompass.com/en/latest-surgical-advancements-adult-congenital-heart-disease"/>
  </url>

  <!-- ── ACHD clinical condition pages (all 3 language variants) ── -->
  <url>
    <loc>https://www.congenitalheartcompass.com/en/arrhythmia-adult-congenital-heart-disease</loc>
    <lastmod>2026-05-09</lastmod><changefreq>monthly</changefreq><priority>0.8</priority>
    <xhtml:link rel="alternate" hreflang="en"      href="https://www.congenitalheartcompass.com/en/arrhythmia-adult-congenital-heart-disease"/>
    <xhtml:link rel="alternate" hreflang="es"      href="https://www.congenitalheartcompass.com/es/arrhythmia-adult-congenital-heart-disease"/>
    <xhtml:link rel="alternate" hreflang="zh-Hans" href="https://www.congenitalheartcompass.com/zh/arrhythmia-adult-congenital-heart-disease"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://www.congenitalheartcompass.com/en/arrhythmia-adult-congenital-heart-disease"/>
  </url>
  <url>
    <loc>https://www.congenitalheartcompass.com/es/arrhythmia-adult-congenital-heart-disease</loc>
    <lastmod>2026-05-09</lastmod><changefreq>monthly</changefreq><priority>0.8</priority>
    <xhtml:link rel="alternate" hreflang="en"      href="https://www.congenitalheartcompass.com/en/arrhythmia-adult-congenital-heart-disease"/>
    <xhtml:link rel="alternate" hreflang="es"      href="https://www.congenitalheartcompass.com/es/arrhythmia-adult-congenital-heart-disease"/>
    <xhtml:link rel="alternate" hreflang="zh-Hans" href="https://www.congenitalheartcompass.com/zh/arrhythmia-adult-congenital-heart-disease"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://www.congenitalheartcompass.com/en/arrhythmia-adult-congenital-heart-disease"/>
  </url>
  <url>
    <loc>https://www.congenitalheartcompass.com/zh/arrhythmia-adult-congenital-heart-disease</loc>
    <lastmod>2026-05-09</lastmod><changefreq>monthly</changefreq><priority>0.8</priority>
    <xhtml:link rel="alternate" hreflang="en"      href="https://www.congenitalheartcompass.com/en/arrhythmia-adult-congenital-heart-disease"/>
    <xhtml:link rel="alternate" hreflang="es"      href="https://www.congenitalheartcompass.com/es/arrhythmia-adult-congenital-heart-disease"/>
    <xhtml:link rel="alternate" hreflang="zh-Hans" href="https://www.congenitalheartcompass.com/zh/arrhythmia-adult-congenital-heart-disease"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://www.congenitalheartcompass.com/en/arrhythmia-adult-congenital-heart-disease"/>
  </url>

  <url>
    <loc>https://www.congenitalheartcompass.com/en/cyanotic-adult-congenital-heart-disease</loc>
    <lastmod>2026-05-09</lastmod><changefreq>monthly</changefreq><priority>0.8</priority>
    <xhtml:link rel="alternate" hreflang="en"      href="https://www.congenitalheartcompass.com/en/cyanotic-adult-congenital-heart-disease"/>
    <xhtml:link rel="alternate" hreflang="es"      href="https://www.congenitalheartcompass.com/es/cyanotic-adult-congenital-heart-disease"/>
    <xhtml:link rel="alternate" hreflang="zh-Hans" href="https://www.congenitalheartcompass.com/zh/cyanotic-adult-congenital-heart-disease"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://www.congenitalheartcompass.com/en/cyanotic-adult-congenital-heart-disease"/>
  </url>
  <url>
    <loc>https://www.congenitalheartcompass.com/es/cyanotic-adult-congenital-heart-disease</loc>
    <lastmod>2026-05-09</lastmod><changefreq>monthly</changefreq><priority>0.8</priority>
    <xhtml:link rel="alternate" hreflang="en"      href="https://www.congenitalheartcompass.com/en/cyanotic-adult-congenital-heart-disease"/>
    <xhtml:link rel="alternate" hreflang="es"      href="https://www.congenitalheartcompass.com/es/cyanotic-adult-congenital-heart-disease"/>
    <xhtml:link rel="alternate" hreflang="zh-Hans" href="https://www.congenitalheartcompass.com/zh/cyanotic-adult-congenital-heart-disease"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://www.congenitalheartcompass.com/en/cyanotic-adult-congenital-heart-disease"/>
  </url>
  <url>
    <loc>https://www.congenitalheartcompass.com/zh/cyanotic-adult-congenital-heart-disease</loc>
    <lastmod>2026-05-09</lastmod><changefreq>monthly</changefreq><priority>0.8</priority>
    <xhtml:link rel="alternate" hreflang="en"      href="https://www.congenitalheartcompass.com/en/cyanotic-adult-congenital-heart-disease"/>
    <xhtml:link rel="alternate" hreflang="es"      href="https://www.congenitalheartcompass.com/es/cyanotic-adult-congenital-heart-disease"/>
    <xhtml:link rel="alternate" hreflang="zh-Hans" href="https://www.congenitalheartcompass.com/zh/cyanotic-adult-congenital-heart-disease"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://www.congenitalheartcompass.com/en/cyanotic-adult-congenital-heart-disease"/>
  </url>

  <url>
    <loc>https://www.congenitalheartcompass.com/en/echocardiography-congenital-heart-disease</loc>
    <lastmod>2026-05-09</lastmod><changefreq>monthly</changefreq><priority>0.8</priority>
    <xhtml:link rel="alternate" hreflang="en"      href="https://www.congenitalheartcompass.com/en/echocardiography-congenital-heart-disease"/>
    <xhtml:link rel="alternate" hreflang="es"      href="https://www.congenitalheartcompass.com/es/echocardiography-congenital-heart-disease"/>
    <xhtml:link rel="alternate" hreflang="zh-Hans" href="https://www.congenitalheartcompass.com/zh/echocardiography-congenital-heart-disease"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://www.congenitalheartcompass.com/en/echocardiography-congenital-heart-disease"/>
  </url>
  <url>
    <loc>https://www.congenitalheartcompass.com/es/echocardiography-congenital-heart-disease</loc>
    <lastmod>2026-05-09</lastmod><changefreq>monthly</changefreq><priority>0.8</priority>
    <xhtml:link rel="alternate" hreflang="en"      href="https://www.congenitalheartcompass.com/en/echocardiography-congenital-heart-disease"/>
    <xhtml:link rel="alternate" hreflang="es"      href="https://www.congenitalheartcompass.com/es/echocardiography-congenital-heart-disease"/>
    <xhtml:link rel="alternate" hreflang="zh-Hans" href="https://www.congenitalheartcompass.com/zh/echocardiography-congenital-heart-disease"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://www.congenitalheartcompass.com/en/echocardiography-congenital-heart-disease"/>
  </url>
  <url>
    <loc>https://www.congenitalheartcompass.com/zh/echocardiography-congenital-heart-disease</loc>
    <lastmod>2026-05-09</lastmod><changefreq>monthly</changefreq><priority>0.8</priority>
    <xhtml:link rel="alternate" hreflang="en"      href="https://www.congenitalheartcompass.com/en/echocardiography-congenital-heart-disease"/>
    <xhtml:link rel="alternate" hreflang="es"      href="https://www.congenitalheartcompass.com/es/echocardiography-congenital-heart-disease"/>
    <xhtml:link rel="alternate" hreflang="zh-Hans" href="https://www.congenitalheartcompass.com/zh/echocardiography-congenital-heart-disease"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://www.congenitalheartcompass.com/en/echocardiography-congenital-heart-disease"/>
  </url>

  <!-- ── Pediatric cardiology Q&A pages (all 3 language variants) ── -->
  <url>
    <loc>https://www.congenitalheartcompass.com/en/book-pediatric-cardiologist-appointment-online</loc>
    <lastmod>2026-05-09</lastmod><changefreq>monthly</changefreq><priority>0.8</priority>
    <xhtml:link rel="alternate" hreflang="en"      href="https://www.congenitalheartcompass.com/en/book-pediatric-cardiologist-appointment-online"/>
    <xhtml:link rel="alternate" hreflang="es"      href="https://www.congenitalheartcompass.com/es/book-pediatric-cardiologist-appointment-online"/>
    <xhtml:link rel="alternate" hreflang="zh-Hans" href="https://www.congenitalheartcompass.com/zh/book-pediatric-cardiologist-appointment-online"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://www.congenitalheartcompass.com/en/book-pediatric-cardiologist-appointment-online"/>
  </url>
  <url>
    <loc>https://www.congenitalheartcompass.com/es/book-pediatric-cardiologist-appointment-online</loc>
    <lastmod>2026-05-09</lastmod><changefreq>monthly</changefreq><priority>0.8</priority>
    <xhtml:link rel="alternate" hreflang="en"      href="https://www.congenitalheartcompass.com/en/book-pediatric-cardiologist-appointment-online"/>
    <xhtml:link rel="alternate" hreflang="es"      href="https://www.congenitalheartcompass.com/es/book-pediatric-cardiologist-appointment-online"/>
    <xhtml:link rel="alternate" hreflang="zh-Hans" href="https://www.congenitalheartcompass.com/zh/book-pediatric-cardiologist-appointment-online"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://www.congenitalheartcompass.com/en/book-pediatric-cardiologist-appointment-online"/>
  </url>
  <url>
    <loc>https://www.congenitalheartcompass.com/zh/book-pediatric-cardiologist-appointment-online</loc>
    <lastmod>2026-05-09</lastmod><changefreq>monthly</changefreq><priority>0.8</priority>
    <xhtml:link rel="alternate" hreflang="en"      href="https://www.congenitalheartcompass.com/en/book-pediatric-cardiologist-appointment-online"/>
    <xhtml:link rel="alternate" hreflang="es"      href="https://www.congenitalheartcompass.com/es/book-pediatric-cardiologist-appointment-online"/>
    <xhtml:link rel="alternate" hreflang="zh-Hans" href="https://www.congenitalheartcompass.com/zh/book-pediatric-cardiologist-appointment-online"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://www.congenitalheartcompass.com/en/book-pediatric-cardiologist-appointment-online"/>
  </url>

  <url>
    <loc>https://www.congenitalheartcompass.com/en/highly-rated-pediatric-cardiologist-complex-congenital-defects</loc>
    <lastmod>2026-05-09</lastmod><changefreq>monthly</changefreq><priority>0.8</priority>
    <xhtml:link rel="alternate" hreflang="en"      href="https://www.congenitalheartcompass.com/en/highly-rated-pediatric-cardiologist-complex-congenital-defects"/>
    <xhtml:link rel="alternate" hreflang="es"      href="https://www.congenitalheartcompass.com/es/highly-rated-pediatric-cardiologist-complex-congenital-defects"/>
    <xhtml:link rel="alternate" hreflang="zh-Hans" href="https://www.congenitalheartcompass.com/zh/highly-rated-pediatric-cardiologist-complex-congenital-defects"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://www.congenitalheartcompass.com/en/highly-rated-pediatric-cardiologist-complex-congenital-defects"/>
  </url>
  <url>
    <loc>https://www.congenitalheartcompass.com/es/highly-rated-pediatric-cardiologist-complex-congenital-defects</loc>
    <lastmod>2026-05-09</lastmod><changefreq>monthly</changefreq><priority>0.8</priority>
    <xhtml:link rel="alternate" hreflang="en"      href="https://www.congenitalheartcompass.com/en/highly-rated-pediatric-cardiologist-complex-congenital-defects"/>
    <xhtml:link rel="alternate" hreflang="es"      href="https://www.congenitalheartcompass.com/es/highly-rated-pediatric-cardiologist-complex-congenital-defects"/>
    <xhtml:link rel="alternate" hreflang="zh-Hans" href="https://www.congenitalheartcompass.com/zh/highly-rated-pediatric-cardiologist-complex-congenital-defects"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://www.congenitalheartcompass.com/en/highly-rated-pediatric-cardiologist-complex-congenital-defects"/>
  </url>
  <url>
    <loc>https://www.congenitalheartcompass.com/zh/highly-rated-pediatric-cardiologist-complex-congenital-defects</loc>
    <lastmod>2026-05-09</lastmod><changefreq>monthly</changefreq><priority>0.8</priority>
    <xhtml:link rel="alternate" hreflang="en"      href="https://www.congenitalheartcompass.com/en/highly-rated-pediatric-cardiologist-complex-congenital-defects"/>
    <xhtml:link rel="alternate" hreflang="es"      href="https://www.congenitalheartcompass.com/es/highly-rated-pediatric-cardiologist-complex-congenital-defects"/>
    <xhtml:link rel="alternate" hreflang="zh-Hans" href="https://www.congenitalheartcompass.com/zh/highly-rated-pediatric-cardiologist-complex-congenital-defects"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://www.congenitalheartcompass.com/en/highly-rated-pediatric-cardiologist-complex-congenital-defects"/>
  </url>

  <url>
    <loc>https://www.congenitalheartcompass.com/en/noninvasive-heart-tests-children-ecg-echocardiogram</loc>
    <lastmod>2026-05-09</lastmod><changefreq>monthly</changefreq><priority>0.8</priority>
    <xhtml:link rel="alternate" hreflang="en"      href="https://www.congenitalheartcompass.com/en/noninvasive-heart-tests-children-ecg-echocardiogram"/>
    <xhtml:link rel="alternate" hreflang="es"      href="https://www.congenitalheartcompass.com/es/noninvasive-heart-tests-children-ecg-echocardiogram"/>
    <xhtml:link rel="alternate" hreflang="zh-Hans" href="https://www.congenitalheartcompass.com/zh/noninvasive-heart-tests-children-ecg-echocardiogram"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://www.congenitalheartcompass.com/en/noninvasive-heart-tests-children-ecg-echocardiogram"/>
  </url>
  <url>
    <loc>https://www.congenitalheartcompass.com/es/noninvasive-heart-tests-children-ecg-echocardiogram</loc>
    <lastmod>2026-05-09</lastmod><changefreq>monthly</changefreq><priority>0.8</priority>
    <xhtml:link rel="alternate" hreflang="en"      href="https://www.congenitalheartcompass.com/en/noninvasive-heart-tests-children-ecg-echocardiogram"/>
    <xhtml:link rel="alternate" hreflang="es"      href="https://www.congenitalheartcompass.com/es/noninvasive-heart-tests-children-ecg-echocardiogram"/>
    <xhtml:link rel="alternate" hreflang="zh-Hans" href="https://www.congenitalheartcompass.com/zh/noninvasive-heart-tests-children-ecg-echocardiogram"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://www.congenitalheartcompass.com/en/noninvasive-heart-tests-children-ecg-echocardiogram"/>
  </url>
  <url>
    <loc>https://www.congenitalheartcompass.com/zh/noninvasive-heart-tests-children-ecg-echocardiogram</loc>
    <lastmod>2026-05-09</lastmod><changefreq>monthly</changefreq><priority>0.8</priority>
    <xhtml:link rel="alternate" hreflang="en"      href="https://www.congenitalheartcompass.com/en/noninvasive-heart-tests-children-ecg-echocardiogram"/>
    <xhtml:link rel="alternate" hreflang="es"      href="https://www.congenitalheartcompass.com/es/noninvasive-heart-tests-children-ecg-echocardiogram"/>
    <xhtml:link rel="alternate" hreflang="zh-Hans" href="https://www.congenitalheartcompass.com/zh/noninvasive-heart-tests-children-ecg-echocardiogram"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://www.congenitalheartcompass.com/en/noninvasive-heart-tests-children-ecg-echocardiogram"/>
  </url>

  <url>
    <loc>https://www.congenitalheartcompass.com/en/interventional-procedures-congenital-heart-defects-children</loc>
    <lastmod>2026-05-09</lastmod><changefreq>monthly</changefreq><priority>0.8</priority>
    <xhtml:link rel="alternate" hreflang="en"      href="https://www.congenitalheartcompass.com/en/interventional-procedures-congenital-heart-defects-children"/>
    <xhtml:link rel="alternate" hreflang="es"      href="https://www.congenitalheartcompass.com/es/interventional-procedures-congenital-heart-defects-children"/>
    <xhtml:link rel="alternate" hreflang="zh-Hans" href="https://www.congenitalheartcompass.com/zh/interventional-procedures-congenital-heart-defects-children"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://www.congenitalheartcompass.com/en/interventional-procedures-congenital-heart-defects-children"/>
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  <!-- ── CHD general education pages (all 3 language variants) ── -->
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    <loc>https://www.congenitalheartcompass.com/en/genetics-family-risk-congenital-heart-disease</loc>
    <lastmod>2026-05-09</lastmod><changefreq>monthly</changefreq><priority>0.8</priority>
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  <url>
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    <lastmod>2026-05-09</lastmod><changefreq>monthly</changefreq><priority>0.8</priority>
    <xhtml:link rel="alternate" hreflang="en"      href="https://www.congenitalheartcompass.com/en/genetics-family-risk-congenital-heart-disease"/>
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  <url>
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  <!-- ── CHD heart failure pages (all 3 language variants) ── -->
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    <xhtml:link rel="alternate" hreflang="x-default" href="https://www.congenitalheartcompass.com/en/how-long-do-people-live-with-congenital-heart-failure"/>
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  <url>
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    <lastmod>2026-05-09</lastmod><changefreq>monthly</changefreq><priority>0.7</priority>
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    <xhtml:link rel="alternate" hreflang="x-default" href="https://www.congenitalheartcompass.com/en/last-stages-of-congenital-heart-failure"/>
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  <!-- ── New specialty SEO pages (pulmonary hypertension, CHD HF, cardio-obstetrics, regional) ── -->
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    <lastmod>2026-05-09</lastmod><changefreq>monthly</changefreq><priority>0.8</priority>
    <xhtml:link rel="alternate" hreflang="en"      href="https://www.congenitalheartcompass.com/en/pulmonary-hypertension-congenital-heart-disease"/>
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  <url>
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    <lastmod>2026-05-09</lastmod><changefreq>monthly</changefreq><priority>0.8</priority>
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  <url>
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    <lastmod>2026-05-09</lastmod><changefreq>monthly</changefreq><priority>0.8</priority>
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  <url>
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  <url>
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    <lastmod>2026-05-09</lastmod><changefreq>monthly</changefreq><priority>0.8</priority>
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    <xhtml:link rel="alternate" hreflang="en"      href="https://www.congenitalheartcompass.com/en/fontan-circulation-heart-failure-specialist"/>
    <xhtml:link rel="alternate" hreflang="es"      href="https://www.congenitalheartcompass.com/es/fontan-circulation-heart-failure-specialist"/>
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    <xhtml:link rel="alternate" hreflang="en"      href="https://www.congenitalheartcompass.com/en/fontan-circulation-heart-failure-specialist"/>
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  <url>
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    <lastmod>2026-05-09</lastmod><changefreq>monthly</changefreq><priority>0.8</priority>
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    <lastmod>2026-05-09</lastmod><changefreq>monthly</changefreq><priority>0.8</priority>
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    <loc>https://www.congenitalheartcompass.com/en/pregnancy-congenital-heart-disease-high-risk</loc>
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    <loc>https://www.congenitalheartcompass.com/en/transition-pediatric-to-adult-congenital-heart-disease</loc>
    <lastmod>2026-05-09</lastmod><changefreq>monthly</changefreq><priority>0.8</priority>
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  <url>
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    <lastmod>2026-05-09</lastmod><changefreq>monthly</changefreq><priority>0.8</priority>
    <xhtml:link rel="alternate" hreflang="en"      href="https://www.congenitalheartcompass.com/en/transition-pediatric-to-adult-congenital-heart-disease"/>
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  <url>
    <loc>https://www.congenitalheartcompass.com/zh/transition-pediatric-to-adult-congenital-heart-disease</loc>
    <lastmod>2026-05-09</lastmod><changefreq>monthly</changefreq><priority>0.8</priority>
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  </url>

  <url>
    <loc>https://www.congenitalheartcompass.com/en/congenital-heart-disease-cardiologist-buffalo-new-york</loc>
    <lastmod>2026-05-09</lastmod><changefreq>monthly</changefreq><priority>0.8</priority>
    <xhtml:link rel="alternate" hreflang="en"      href="https://www.congenitalheartcompass.com/en/congenital-heart-disease-cardiologist-buffalo-new-york"/>
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  </url>
  <url>
    <loc>https://www.congenitalheartcompass.com/es/congenital-heart-disease-cardiologist-buffalo-new-york</loc>
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  <url>
    <loc>https://www.congenitalheartcompass.com/zh/congenital-heart-disease-cardiologist-buffalo-new-york</loc>
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  <url>
    <loc>https://www.congenitalheartcompass.com/en/congenital-heart-disease-cardiologist-rochester-new-york</loc>
    <lastmod>2026-05-09</lastmod><changefreq>monthly</changefreq><priority>0.8</priority>
    <xhtml:link rel="alternate" hreflang="en"      href="https://www.congenitalheartcompass.com/en/congenital-heart-disease-cardiologist-rochester-new-york"/>
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  </url>
  <url>
    <loc>https://www.congenitalheartcompass.com/es/congenital-heart-disease-cardiologist-rochester-new-york</loc>
    <lastmod>2026-05-09</lastmod><changefreq>monthly</changefreq><priority>0.8</priority>
    <xhtml:link rel="alternate" hreflang="en"      href="https://www.congenitalheartcompass.com/en/congenital-heart-disease-cardiologist-rochester-new-york"/>
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  </url>
  <url>
    <loc>https://www.congenitalheartcompass.com/zh/congenital-heart-disease-cardiologist-rochester-new-york</loc>
    <lastmod>2026-05-09</lastmod><changefreq>monthly</changefreq><priority>0.8</priority>
    <xhtml:link rel="alternate" hreflang="en"      href="https://www.congenitalheartcompass.com/en/congenital-heart-disease-cardiologist-rochester-new-york"/>
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  </url>

  <url>
    <loc>https://www.congenitalheartcompass.com/en/aortopathy-congenital-heart-disease-specialist-new-york</loc>
    <lastmod>2026-05-09</lastmod><changefreq>monthly</changefreq><priority>0.8</priority>
    <xhtml:link rel="alternate" hreflang="en"      href="https://www.congenitalheartcompass.com/en/aortopathy-congenital-heart-disease-specialist-new-york"/>
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  </url>
  <url>
    <loc>https://www.congenitalheartcompass.com/es/aortopathy-congenital-heart-disease-specialist-new-york</loc>
    <lastmod>2026-05-09</lastmod><changefreq>monthly</changefreq><priority>0.8</priority>
    <xhtml:link rel="alternate" hreflang="en"      href="https://www.congenitalheartcompass.com/en/aortopathy-congenital-heart-disease-specialist-new-york"/>
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  <url>
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    <lastmod>2026-05-09</lastmod><changefreq>monthly</changefreq><priority>0.8</priority>
    <xhtml:link rel="alternate" hreflang="en"      href="https://www.congenitalheartcompass.com/en/aortopathy-congenital-heart-disease-specialist-new-york"/>
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  </url>

  <url>
    <loc>https://www.congenitalheartcompass.com/en/congenital-heart-disease-second-opinion-new-york</loc>
    <lastmod>2026-05-09</lastmod><changefreq>monthly</changefreq><priority>0.8</priority>
    <xhtml:link rel="alternate" hreflang="en"      href="https://www.congenitalheartcompass.com/en/congenital-heart-disease-second-opinion-new-york"/>
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  </url>
  <url>
    <loc>https://www.congenitalheartcompass.com/es/congenital-heart-disease-second-opinion-new-york</loc>
    <lastmod>2026-05-09</lastmod><changefreq>monthly</changefreq><priority>0.8</priority>
    <xhtml:link rel="alternate" hreflang="en"      href="https://www.congenitalheartcompass.com/en/congenital-heart-disease-second-opinion-new-york"/>
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  </url>
  <url>
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    <lastmod>2026-05-09</lastmod><changefreq>monthly</changefreq><priority>0.8</priority>
    <xhtml:link rel="alternate" hreflang="en"      href="https://www.congenitalheartcompass.com/en/congenital-heart-disease-second-opinion-new-york"/>
    <xhtml:link rel="alternate" hreflang="es"      href="https://www.congenitalheartcompass.com/es/congenital-heart-disease-second-opinion-new-york"/>
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  </url>

  <!-- ── Condition detail pages ── -->
  <url>
    <loc>https://www.congenitalheartcompass.com/en/conditions/pediatric-chd</loc>
    <lastmod>2026-05-09</lastmod><changefreq>monthly</changefreq><priority>0.7</priority>
  </url>
  <url>
    <loc>https://www.congenitalheartcompass.com/en/conditions/adult-congenital-heart-disease</loc>
    <lastmod>2026-05-09</lastmod><changefreq>monthly</changefreq><priority>0.7</priority>
  </url>
  <url>
    <loc>https://www.congenitalheartcompass.com/en/conditions/pregnancy-heart-disease</loc>
    <lastmod>2026-05-09</lastmod><changefreq>monthly</changefreq><priority>0.7</priority>
  </url>
  <url>
    <loc>https://www.congenitalheartcompass.com/en/conditions/transition-care</loc>
    <lastmod>2026-05-09</lastmod><changefreq>monthly</changefreq><priority>0.7</priority>
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  <url>
    <loc>https://www.congenitalheartcompass.com/en/conditions/heart-failure-chd</loc>
    <lastmod>2026-05-09</lastmod><changefreq>monthly</changefreq><priority>0.7</priority>
  </url>
  <url>
    <loc>https://www.congenitalheartcompass.com/en/conditions/pulmonary-hypertension</loc>
    <lastmod>2026-05-09</lastmod><changefreq>monthly</changefreq><priority>0.7</priority>
  </url>
  <url>
    <loc>https://www.congenitalheartcompass.com/en/conditions/aortopathy</loc>
    <lastmod>2026-05-09</lastmod><changefreq>monthly</changefreq><priority>0.7</priority>
  </url>
  <url>
    <loc>https://www.congenitalheartcompass.com/en/conditions/pediatric-acquired</loc>
    <lastmod>2026-05-09</lastmod><changefreq>monthly</changefreq><priority>0.7</priority>
  </url>
  <url>
    <loc>https://www.congenitalheartcompass.com/en/conditions/second-opinions</loc>
    <lastmod>2026-05-09</lastmod><changefreq>monthly</changefreq><priority>0.7</priority>
  </url>

  <!-- Blog posts -->
  <url>
    <loc>https://www.congenitalheartcompass.com/en/blog/what-is-adult-congenital-heart-disease/</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://www.congenitalheartcompass.com/en/blog/what-is-adult-congenital-heart-disease/" />
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    <lastmod>2026-05-09</lastmod><changefreq>weekly</changefreq><priority>0.7</priority>
  </url>
  <url>
    <loc>https://www.congenitalheartcompass.com/en/blog/transitioning-to-adult-congenital-heart-care/</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://www.congenitalheartcompass.com/en/blog/transitioning-to-adult-congenital-heart-care/" />
    <xhtml:link rel="alternate" hreflang="es" href="https://www.congenitalheartcompass.com/es/blog/transitioning-to-adult-congenital-heart-care/" />
    <xhtml:link rel="alternate" hreflang="zh-Hans" href="https://www.congenitalheartcompass.com/zh/blog/transitioning-to-adult-congenital-heart-care/" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://www.congenitalheartcompass.com/en/blog/transitioning-to-adult-congenital-heart-care/" />
    <lastmod>2026-05-09</lastmod><changefreq>weekly</changefreq><priority>0.7</priority>
  </url>
  <url>
    <loc>https://www.congenitalheartcompass.com/en/blog/pregnancy-with-congenital-heart-disease/</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://www.congenitalheartcompass.com/en/blog/pregnancy-with-congenital-heart-disease/" />
    <xhtml:link rel="alternate" hreflang="es" href="https://www.congenitalheartcompass.com/es/blog/pregnancy-with-congenital-heart-disease/" />
    <xhtml:link rel="alternate" hreflang="zh-Hans" href="https://www.congenitalheartcompass.com/zh/blog/pregnancy-with-congenital-heart-disease/" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://www.congenitalheartcompass.com/en/blog/pregnancy-with-congenital-heart-disease/" />
    <lastmod>2026-05-09</lastmod><changefreq>weekly</changefreq><priority>0.7</priority>
  </url>
  <url>
    <loc>https://www.congenitalheartcompass.com/en/blog/bicuspid-aortic-valve-long-term-monitoring/</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://www.congenitalheartcompass.com/en/blog/bicuspid-aortic-valve-long-term-monitoring/" />
    <xhtml:link rel="alternate" hreflang="es" href="https://www.congenitalheartcompass.com/es/blog/bicuspid-aortic-valve-long-term-monitoring/" />
    <xhtml:link rel="alternate" hreflang="zh-Hans" href="https://www.congenitalheartcompass.com/zh/blog/bicuspid-aortic-valve-long-term-monitoring/" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://www.congenitalheartcompass.com/en/blog/bicuspid-aortic-valve-long-term-monitoring/" />
    <lastmod>2026-05-09</lastmod><changefreq>weekly</changefreq><priority>0.7</priority>
  </url>

  <!-- ── Insight posts ── -->
  <url>
    <loc>https://www.congenitalheartcompass.com/en/insights/what-is-adult-congenital-heart-disease</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://www.congenitalheartcompass.com/en/insights/what-is-adult-congenital-heart-disease" />
    <xhtml:link rel="alternate" hreflang="es" href="https://www.congenitalheartcompass.com/es/insights/what-is-adult-congenital-heart-disease" />
    <xhtml:link rel="alternate" hreflang="zh-Hans" href="https://www.congenitalheartcompass.com/zh/insights/what-is-adult-congenital-heart-disease" />
    <xhtml:link rel="alternate" hreflang="x-default" href="https://www.congenitalheartcompass.com/en/insights/what-is-adult-congenital-heart-disease" />
    <lastmod>2026-05-09</lastmod><changefreq>monthly</changefreq><priority>0.7</priority>
  </url>
  <url>
    <loc>https://www.congenitalheartcompass.com/en/insights/pregnancy-congenital-heart-disease</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://www.congenitalheartcompass.com/en/insights/pregnancy-congenital-heart-disease" />
    <xhtml:link rel="alternate" hreflang="es" href="https://www.congenitalheartcompass.com/es/insights/pregnancy-congenital-heart-disease" />
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