Ustekinumab success in refractory Crohn’s disease Czyzewski A, medwireNews, 22 Oct 2012 Accessed on 1 Nov 2012 from http://www.news-medical.net/news/20121022/Ustekinumab-success-in-refractory-Crohne28099s-disease.aspx. CommentRecommendBookmarkWatch