Validity of the diagnostic criteria for chronic cerebrospinal venous insufficiency and association with multiple sclerosis. Costello F, Modi J, Lautner D, Bhayana D, Scott JN, Davenport JW, Trufyn J, Frayne R, Ciura VA, Goyal M, et al. CMAJ. 2014 Jun 2. Epub 2014 Jun 02. PMID: 24890104. Abstract CommentRecommendBookmarkWatch