Better resolution in clinical phonocardiography. II. The use of compressor phonocardiograph.
D000680:Amyl Nitrite; D001022:Aortic Valve Insufficiency / Q000175:diagnosis; D004541:Eisenmenger Complex / Q000175:diagnosis; D005374:Filtration; D006345:Heart Septal Defects, Ventricular / Q000175:diagnosis; D006801:Humans; D008946:Mitral Valve Stenosis / Q000175:diagnosis; D010701:Phonocardiography / Q000295:instrumentation*; D011665:Pulmonary Valve Insufficiency
D000680:Amyl Nitrite