Origin of the second heart sound: clinical relevance of new observations.
D000818:Animals; D001022:Aortic Valve Insufficiency / Q000503:physiopathology; D001024:Aortic Valve Stenosis / Q000503:physiopathology; D001794:Blood Pressure; D006326:Heart Auscultation; D006347:Heart Sounds; D006351:Heart Valves / Q000502:physiology; D006801:Humans; D066298:In Vitro Techniques; D008954:Models, Biological; D013552:Swine