Patel Nayan M, Schwartz Douglas J
Department of Gastroenterology and Hepatology, Phoenix Veterans Affairs Healthcare System, Phoenix, Arizona, USA.
Gastrointest Endosc. 2011 Dec;74(6):1404-5; discussion 1405-6. doi: 10.1016/j.gie.2011.07.058. Epub 2011 Oct 1.