title: Classification and diagnostic criteria for polymyositis and dermatomyositis.
authors.forename: T A
authors.initials: TA
authors.lastname: Medsger
authors.forename: C V
authors.initials: CV
authors.lastname: Oddis
mesh_terms: D003882:Dermatomyositis / Q000145:classification* / Q000175:diagnosis*; D006801:Humans; D017285:Polymyositis / Q000145:classification* / Q000175:diagnosis*