Aortic regurgitation in the Tuskegee study of untreated syphilis.
D000368:Aged; D000407:Alabama; D001022:Aortic Valve Insufficiency / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000209:etiology*; D001344:Autopsy; D004562:Electrocardiography; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D010701:Phonocardiography; D011674:Pulse; D011859:Radiography; D013589:Syphilis, Cardiovascular / Q000150:complications* / Q000175:diagnosis / Q000473:pathology; D013997:Time Factors