title: Multiple sclerosis and Sjögren's syndrome: a problem in diagnosis or in definition of two disorders of unknown etiology?
authors: P M
authors: PM
authors: Moore
authors: R P
authors: RP
authors: Lisak
mesh_terms: D006801:Humans; D009103:Multiple Sclerosis / Q000175:diagnosis* / Q000209:etiology / Q000276:immunology; D012859:Sjogren's Syndrome / Q000175:diagnosis* / Q000209:etiology / Q000276:immunology