Idiopathic aquaporin-4 antibody negative longitudinally extensive transverse myelitis. Hyun J-W, Kim S-H, Huh S-Y, Kim W, Yun J, Joung A, Sato D K, Fujihara K, Kim H J Mult Scler. 2014 Oct 10. PMID: 25305252. Abstract CommentRecommendBookmarkWatch