Kia Leila, Sikka Sanjay K, Komanduri Srinadh
Division of Gastroenterology, Northwestern Memorial Hospital, Feinberg School of Medicine, Chicago, Illinois 60611, USA.
Gastrointest Endosc. 2010 Dec;72(6):1320-1. doi: 10.1016/j.gie.2010.02.055. Epub 2010 Jun 15.