[Heart sounds].
D006321:Heart / Q000502:physiology / Q000503:physiopathology; D006326:Heart Auscultation; D006331:Heart Diseases / Q000175:diagnosis / Q000503:physiopathology; D006347:Heart Sounds; D006351:Heart Valves / Q000502:physiology / Q000503:physiopathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D010701:Phonocardiography
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