Sagi Sashidhar V, Kum Jennifer B, House Michael G, Rex Douglas K
Department of Gastroenterology and Hepatology, Indiana University, Indianapolis, Indiana, USA.
Gastrointest Endosc. 2013 Aug;78(2):363; discussion 363-4. doi: 10.1016/j.gie.2013.04.171. Epub 2013 May 13.