Echocardiographic detection of early cardiac involvement in juvenile rheumatoid arthritis.
D001171:Arthritis, Juvenile / Q000150:complications*; D002648:Child; D002675:Child, Preschool; D004452:Echocardiography; D005260:Female; D006801:Humans; D008297:Male; D010493:Pericarditis / Q000175:diagnosis* / Q000209:etiology; D012214:Rheumatic Heart Disease / Q000175:diagnosis* / Q000209:etiology; D013997:Time Factors