Editors' Pick Observational case-control study of the prevalence of chronic cerebrospinal venous insufficiency in multiple sclerosis: results from the CoSMo study. Comi G, Battaglia M, Bertolotto A, Sette DM, Ghezzi A, Malferrari G, Salvetti M, Sormani M, Tesio L, Stolz E, et al. Mult Scler. 2013 Sep 6. Epub 1969 Dec 31. PMID: 24014572. Abstract CommentRecommendBookmarkWatch