Prevalence of heart diseases in school-age children of Bangkok.
D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D006330:Heart Defects, Congenital / Q000453:epidemiology; D006331:Heart Diseases / Q000453:epidemiology*; D006349:Heart Valve Diseases / Q000453:epidemiology; D006801:Humans; D008403:Mass Screening; D012572:School Health Services; D013785:Thailand