Cardiac diseases in early childhood.
D002648:Child; D002675:Child, Preschool; D004695:Endocardial Fibroelastosis / Q000175:diagnosis; D006331:Heart Diseases / Q000175:diagnosis*; D006333:Heart Failure / Q000175:diagnosis; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D009205:Myocarditis / Q000175:diagnosis; D013614:Tachycardia, Paroxysmal / Q000175:diagnosis