'Clinically definite benign multiple sclerosis', an unwarranted conceptual hodgepodge: evidence from a 30-year observational study. Leray E, Coustans M, Le Page E, Yaouanq J, Oger J, Edan G Mult Scler. 2012 Aug 2. PMID: 22859724. Abstract CommentRecommendBookmarkWatch