A pathognomonic murmur of "atypical" patent ductus arteriosus.
D004374:Ductus Arteriosus, Patent / Q000150:complications / Q000175:diagnosis* / Q000473:pathology; D006801:Humans; D006976:Hypertension, Pulmonary / Q000175:diagnosis* / Q000209:etiology; D008297:Male; D008875:Middle Aged; D010701:Phonocardiography