We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleLong term outcome of patients with active Crohn's disease exhibiting extensive and deep ulcerations at colonoscopy.AuthorsAllez M; Lemann M; Bonnet J; Cattan P; Jian R; Modigliani RPublicationThe American journal of gastroenterology, 2002, Vol 97, Issue 4, p947ISSN0002-9270Publication typearticleDOI10.1111/j.1572-0241.2002.05614.x