Editors' Pick Vitamin D and Risk of Multiple Sclerosis: A Mendelian Randomization Study. Mokry LE, Ross S, Ahmad OS, Forgetta V, Smith G D, Leong A, Greenwood CMT, Thanassoulis G, Richards BJ PLoS Med. 2015 Aug; 12(8):e1001866. Epub 2015 Aug 25. PMID: 26305103. Abstract CommentRecommendBookmarkWatch