Increase in the prevalence of multiple sclerosis over a 17-year period in Osona, Catalonia, Spain. Otero-Romero S, Roura P, Solà J, Altimiras J, Sastre-Garriga J, Nos C, Vaqué J, Montalban X, Bufill E Mult Scler. 2012 Apr 30. PMID: 22546846. Abstract CommentRecommendBookmarkWatch