title: [Polymyositis occurring during the development of rheumatoid arthritis].
mesh_terms: D000368:Aged; D001172:Arthritis, Rheumatoid / Q000150:complications*; D005260:Female; D006801:Humans; D009220:Myositis / Q000209:etiology*
vernacular_title: Polymyosite survenant au cours de l'évolution d'une polyarthrite rhumatoide.