title: A simple method of recording heart sounds and murmurs.
mesh_terms: D000787:Angina Pectoris / Q000503:physiopathology; D001022:Aortic Valve Insufficiency / Q000503:physiopathology; D001281:Atrial Fibrillation / Q000503:physiopathology; D002037:Bundle-Branch Block / Q000503:physiopathology; D004562:Electrocardiography; D004582:Electronics, Medical; D006333:Heart Failure / Q000503:physiopathology; D006801:Humans; D008722:Methods; D008944:Mitral Valve Insufficiency / Q000503:physiopathology; D008946:Mitral Valve Stenosis / Q000503:physiopathology; D010701:Phonocardiography / Q000295:instrumentation