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  1. Classes and Stages of Heart Failure

  2. New York Heart Association (NYHA) Classification of Heart Failure

  3. New York Heart Association (NYHA) Functional Classification ... - MDCalc

  4. NYHA Classification & stages - HAVHRT

  5. 4 Stages of Congestive Heart Failure: What They Mean - Verywell …

  6. Stages of Heart Failure and Their Treatments - Penn Medicine

  7. 2022 AHA/ACC/HFSA Guideline for the Management of Heart …

  8. New York Heart Association Functional Classification

  9. Congestive Heart Failure Stages: Treatment and Outlook - Healthline