RT Journal Article SR Electronic T1 Toward optimal use of corticosteroids in ulcerative colitis and Crohn's disease. JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 177 OP 181 DO 10.1136/gut.24.3.177 VO 24 IS 3 A1 Lennard-Jones, J E YR 1983 UL http://gut.bmj.com/content/24/3/177.abstract AB