[POLYMYOSITIS IN CHRONIC RHEUMATISM (POLYMYOSITIS RHEUMATOIDEA)].
D000293:Adolescent; D001168:Arthritis; D001171:Arthritis, Juvenile; D002648:Child; D006801:Humans; D009220:Myositis; D017285:Polymyositis; D012216:Rheumatic Diseases
ARTHRITIS, JUVENILE RHEUMATOID; CHILD; MYOSITIS