Polymyositis and dermatomyositis.
D000328:Adult; D002648:Child; D002675:Child, Preschool; D003882:Dermatomyositis / Q000150:complications / Q000175:diagnosis / Q000188:drug therapy / Q000209:etiology; D005260:Female; D006801:Humans; D009220:Myositis / Q000150:complications / Q000175:diagnosis / Q000188:drug therapy / Q000209:etiology