Detection of heart disease in children, 1919-1967.
D002648:Child; D003201:Computers; D004562:Electrocardiography; D006326:Heart Auscultation; D006330:Heart Defects, Congenital / Q000175:diagnosis / Q000453:epidemiology; D006331:Heart Diseases / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000453:epidemiology*; D006801:Humans; D008403:Mass Screening; D011859:Radiography; D012214:Rheumatic Heart Disease / Q000175:diagnosis / Q000453:epidemiology; D013637:Tape Recording