The late systolic murmur.
D000328:Adult; D000680:Amyl Nitrite; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D008944:Mitral Valve Insufficiency / Q000175:diagnosis*; D010701:Phonocardiography
D000680:Amyl Nitrite