Efficacy of glatiramer acetate in neuromyelitis optica spectrum disorder: a multicenter retrospective study. Ayzenberg I, Schöllhammer J, Hoepner R, Hellwig K, Ringelstein M, Aktas O, Kümpfel T, Krumbholz M, Trebst C, Paul F, et al. J Neurol. 2016 Jan 25. PMID: 26810718. Abstract CommentRecommendBookmarkWatch