Heart disease in children.
D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D003327:Coronary Disease / Q000209:etiology; D006330:Heart Defects, Congenital / Q000209:etiology / Q000517:prevention & control; D006331:Heart Diseases / Q000517:prevention & control*; D006801:Humans; D006973:Hypertension / Q000517:prevention & control; D007223:Infant; D012214:Rheumatic Heart Disease / Q000517:prevention & control