Frequency of viral infections and environmental factors in multiple sclerosis. Eftekharian M M, Ghannad M S, Taheri M, Roshanaei G, Mazdeh M, Musavi M, Hormoz M B Hum Antibodies. 2016 Jun 8; 24(1-2):17-23. PMID: 27472869. Abstract CommentRecommendBookmarkWatch