title: [Sound spectrographic examinations of heart sounds and murmurs in aortic valve lesions].
mesh_terms: D001021:Aortic Valve; D001022:Aortic Valve Insufficiency / Q000175:diagnosis; D001024:Aortic Valve Stenosis / Q000175:diagnosis; D006326:Heart Auscultation; D006337:Heart Murmurs; D006349:Heart Valve Diseases / Q000175:diagnosis*; D006801:Humans; D008722:Methods; D010781:Photography; D013016:Sound
vernacular_title: Schallspektrographische Untersuchungen an Herztönen und Geräuschen von Aortenklappenvitien