Evidence for a two-stage disability progression in multiple sclerosis. Leray E, Yaouanq J, Lepage E, Coustans M, Laplaud D, Oger J, Edan G Brain. 2010 Jul; 133(Pt 7):1900-13. Epub 2010 Apr 27. PMID: 20423930. Abstract CommentRecommendBookmarkWatch