Olsalazine is not superior to placebo in maintaining remission of inactive Crohn's colitis and ileocolitis: a double blind, parallel, randomised, multicentre study
N Mahmud, M A Kamm, J L Dupas, D P Jewell, C A O'Morain, D G Weir, D Kelleher
Gut Oct 2001, 49 (4) 552-556; DOI: 10.1136/gut.49.4.552
