title: Amyl nitrite test using double microphones for differentiation of systolic murmurs in the elderly.
mesh_terms: D000368:Aged; D000669:Amplifiers, Electronic; D000680:Amyl Nitrite / Q000494:pharmacology; D001794:Blood Pressure / Q000187:drug effects; D005260:Female; D006339:Heart Rate / Q000187:drug effects; D006801:Humans; D008297:Male; D008875:Middle Aged; D010701:Phonocardiography
chemical_list: D000680:Amyl Nitrite