Histopathological investigation in Glycine receptor antibody positive progressive encephalomyelitis with rigidity and myoclonus (PERM): A case report. Guzman S, Granholm A-C, Benson-Gallanis M, Denney A, Olofsson H E, Raust M, Phares J, Aragon S, Bretsch C, Carlson AM, et al. J Neuroimmunol. 2026 Oct 05; 422:579107. PMID: 42843155. Abstract CommentRecommendBookmarkWatch