title: [New diagnostic criteria and measuring outcome in polymyositis and dermatomyositis].
authors.forename: P
authors.initials: P
authors.lastname: Chérin
authors.forename: I
authors.initials: I
authors.lastname: Marie
mesh_terms: D006801:Humans; D017285:Polymyositis / Q000175:diagnosis* / Q000628:therapy; D016896:Treatment Outcome