Auscultation of the heart by machine and by physicians.
D000293:Adolescent; D000328:Adult; D001022:Aortic Valve Insufficiency / Q000175:diagnosis; D002648:Child; D002675:Child, Preschool; D003201:Computers; D006326:Heart Auscultation; D006801:Humans; D008944:Mitral Valve Insufficiency / Q000175:diagnosis; D008946:Mitral Valve Stenosis / Q000175:diagnosis; D012214:Rheumatic Heart Disease / Q000175:diagnosis*; D013637:Tape Recording