Editors' Pick Reduced gamma-aminobutyric acid concentration is associated with physical disability in progressive multiple sclerosis. Cawley N, Solanky BS, Muhlert N, Tur C, Edden RAE, Wheeler-Kingshott C A, Miller DH, Thompson AJ, Ciccarelli O Brain. 2015 Sep; 138(Pt 9):2584-95. Epub 1969 Dec 31. PMID: 26304151. Abstract CommentRecommendBookmarkWatch