Medical Tourism for CCSVI Procedures in People with Multiple Sclerosis: An Observational Study. Metz LM, Greenfield J, Marrie R A, Jette N, Blevins G, Svenson LW, Alikhani K, Wall W, Dhaliwal R, Suchowersky O Can J Neurol Sci. 2016 Feb 4:1-8. PMID: 26891024. Abstract CommentRecommendBookmarkWatch