title: Reexamining the New York Heart association functional classification of heart failure.
authors: Efstratios
authors: E
authors: Apostolakis
authors: Karolina
authors: K
authors: Akinosoglou
mesh_terms: D002303:Cardiac Output, Low / Q000145:classification* / Q000503:physiopathology; D017079:Exercise Tolerance / Q000502:physiology; D006801:Humans; D009043:Motor Activity / Q000502:physiology; D010101:Oxygen Consumption / Q000502:physiology; D009626:Terminology as Topic; D016138:Walking / Q000502:physiology