Editors' Pick Association of Vitamin D Levels With Multiple Sclerosis Activity and Progression in Patients Receiving Interferon Beta-1b. Fitzgerald KC, Munger KL, Köchert K, Arnason BGW, Comi G, Cook S, Goodin DS, Filippi M, Hartung H-P, Jeffery DR, et al. JAMA Neurol. 2015 Oct 12:1-8. PMID: 26458124. Abstract CommentRecommendBookmarkWatch