Interferon beta-1b reduces black holes in a randomised trial of clinically isolated syndrome. Nagtegaal G J, Pohl C, Wattjes MP, Hulst HE, Freedman MS, Hartung H-P, Miller D, Montalban X, Kappos L, Edan G, et al. Mult Scler. 2013 Jul 10. PMID: 23842212. Abstract CommentRecommendBookmarkWatch