title: [Polymyositis. Review of concepts and electromyographic diagnosis].
mesh_terms: D001172:Arthritis, Rheumatoid / Q000175:diagnosis; D001706:Biopsy; D003882:Dermatomyositis / Q000175:diagnosis; D003937:Diagnosis, Differential; D004576:Electromyography; D006801:Humans; D008180:Lupus Erythematosus, Systemic / Q000175:diagnosis; D009132:Muscles / Q000473:pathology; D009220:Myositis / Q000145:classification / Q000175:diagnosis* / Q000473:pathology; D011115:Polyneuropathies / Q000175:diagnosis; D012595:Scleroderma, Systemic / Q000175:diagnosis
vernacular_title: Las polimiositis. Revisión conceptual y diagnóstico electromiográfico