[Myopathies in collagen diseases].
D001172:Arthritis, Rheumatoid / Q000150:complications; D003095:Collagen Diseases / Q000150:complications*; D006801:Humans; D008180:Lupus Erythematosus, Systemic / Q000150:complications; D008947:Mixed Connective Tissue Disease / Q000150:complications; D009135:Muscular Diseases / Q000139:chemically induced; D009220:Myositis / Q000209:etiology* / Q000473:pathology / Q000503:physiopathology