Kahrilas Peter J, Shaheen Nicholas J, Vaezi Michael F, Hiltz Stephen W, Black Edgar, Modlin Irvin M, Johnson Steve P, Allen John, Brill Joel V
Department of Medicine, Gastroenterology Division, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA.
Gastroenterology. 2008 Oct;135(4):1383-1391, 1391.e1-5. doi: 10.1053/j.gastro.2008.08.045.