Sandborn William J, Fazio Victor W, Feagan Brian G, Hanauer Stephen B
Clinical Practice Committee, AGA National Office, c/o Membership Department, 4930 Del Ray Avenue, Bethesda, MD 20814, USA.
Gastroenterology. 2003 Nov;125(5):1508-30. doi: 10.1016/j.gastro.2003.08.025.