Heart disease in children.
D000293:Adolescent; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D006330:Heart Defects, Congenital / Q000150:complications / Q000453:epidemiology*; D006801:Humans; D007194:India; D012214:Rheumatic Heart Disease / Q000150:complications / Q000453:epidemiology*