The main heart sounds as vibrations of the cardiohemic system: old controversy and new facts.
D004562:Electrocardiography; D006326:Heart Auscultation; D006331:Heart Diseases / Q000175:diagnosis; D006347:Heart Sounds; D006349:Heart Valve Diseases / Q000175:diagnosis; D006801:Humans; D009200:Myocardial Contraction; D010701:Phonocardiography