title: Letter: should colectomy be the end-point to evaluate the effectiveness of drug therapies in severe ulcerative colitis? Authors' reply.
authors.forename: T
authors.initials: T
authors.lastname: Katsuno
authors.forename: K
authors.initials: K
authors.lastname: Saito
authors.forename: O
authors.initials: O
authors.lastname: Yokosuka
mesh_terms: D003093:Colitis, Ulcerative / Q000188:drug therapy*; D016572:Cyclosporine / Q000008:administration & dosage*; D005260:Female; D006801:Humans; D007166:Immunosuppressive Agents / Q000008:administration & dosage*; D008297:Male
chemical_list: D007166:Immunosuppressive Agents; D016572:Cyclosporine