title: [Muscle biopsy in the diagnosis of polymyositis. Apropos of 13 cases].
mesh_terms: D001706:Biopsy; D006801:Humans; D009132:Muscles / Q000473:pathology* / Q000648:ultrastructure; D009220:Myositis / Q000175:diagnosis / Q000473:pathology*
vernacular_title: Apport de la biopsie musculaire au diagnostic des polymyosites. A propos de trieze observations.