[Duration of antirheumatic treatment in the prevention of rheumatic valvular incompetence].
D000293:Adolescent; D001623:Betamethasone / Q000627:therapeutic use*; D002648:Child; D002675:Child, Preschool; D006349:Heart Valve Diseases / Q000517:prevention & control*; D006801:Humans; D011239:Prednisolone / Q000627:therapeutic use*; D012213:Rheumatic Fever / Q000150:complications; D012214:Rheumatic Heart Disease / Q000188:drug therapy*
D001623:Betamethasone; D011239:Prednisolone