Ustekinumab induction and maintenance therapy in refractory Crohn's disease. Sandborn WJ, Gasink C, Gao L-L, Blank MA, Johanns J, Guzzo C, Sands BE, Hanauer SB, Targan S, Rutgeerts P, et al. N Engl J Med. 2012 Oct 18; 367(16):1519-28. PMID: 23075178. Abstract CommentRecommendBookmarkWatch