Interferon beta-1b is effective in relapsing-remitting multiple sclerosis. II. MRI analysis results of a multicenter, randomized, double-blind, placebo-controlled trial. UBC MS/MRI Study Group and the IFNB Multiple Sclerosis Study Group. Paty DW, Li DK Neurology. 1993 Apr; 43(4):662-7. PMID: 8469319. Abstract CommentRecommendBookmarkWatch