Rheumatic heart disease in Osaka children.
D002648:Child; D005500:Follow-Up Studies; D006349:Heart Valve Diseases / Q000453:epidemiology; D006801:Humans; D007564:Japan; D011379:Prognosis; D012214:Rheumatic Heart Disease / Q000453:epidemiology* / Q000401:mortality; D012959:Socioeconomic Factors