title: Polymyositis and myopathies in collagen diseases.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D003095:Collagen Diseases / Q000150:complications*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009135:Muscular Diseases / Q000150:complications*; D009220:Myositis / Q000150:complications*