Increased autoimmune disease burden before multiple sclerosis and neuromyelitis optica spectrum disorder diagnosis: A nationwide Korean cohort study. Kwon S, Kim J H, Chung Y H, Kim B, Han K, Shin D W, Min J-H Mult Scler. 2026 Oct 17:13524585261494379. PMID: 42891509. Abstract CommentRecommendBookmarkWatch