Editors' Pick Chronic cerebrospinal venous insufficiency is not associated with cognitive impairment in multiple sclerosis. Benedict RHB, Weinstock-Guttmam B, Marr K, Valnarov V, Kennedy C, Carl E, Brooks C, Hojnacki D, Zivadinov R BMC Med. 2013 Jul 18; 11(1):167. Epub 2013 Jul 18. PMID: 23866161. Abstract CommentRecommendBookmarkWatch