Epidemiology of rheumatic heart disease in Iran. Observations on 10,676 Iranian school children.
D000293:Adolescent; D001024:Aortic Valve Stenosis / Q000175:diagnosis; D002648:Child; D004562:Electrocardiography; D005260:Female; D006801:Humans; D007492:Iran; D008297:Male; D008403:Mass Screening; D012214:Rheumatic Heart Disease / Q000453:epidemiology*; D012959:Socioeconomic Factors