title: [ON PHONOCARDIOGRAPHIC MODIFICATIONS OF DIASTOLIC MURMURS AFTER ADMINISTRATION OF VASOACTIVE DRUGS].
mesh_terms: D000680:Amyl Nitrite; D001024:Aortic Valve Stenosis; D004373:Ductus Arteriosus; D004374:Ductus Arteriosus, Patent; D006337:Heart Murmurs; D006349:Heart Valve Diseases; D006801:Humans; D008680:Metaraminol; D008944:Mitral Valve Insufficiency; D008946:Mitral Valve Stenosis; D004364:Pharmaceutical Preparations; D010600:Pharmacology; D010701:Phonocardiography
chemical_list: D004364:Pharmaceutical Preparations; D000680:Amyl Nitrite; D008680:Metaraminol
keywords: AMYL NITRITE; AORTIC VALVE STENOSIS; DUCTUS ARTERIOSUS, PATENT; HEART VALVE DISEASES; METARAMINOL; MITRAL VALVE INSUFFICIENCY; MITRAL VALVE STENOSIS; PHARMACOLOGY; PHONOCARDIOGRAPHY
vernacular_title: SULLE MODIFICAZIONI FONOCARDIOGRAFICHE DEI SOFFI DIASTOLICI DOPO SOMMINISTRAZIONE DI FARMACI VASOATTIVI.