Yoon Sonia S, Rivera Rene, Shah Ashok, Ozden Nuri
Department of Medicine, Division of Gastroenterology & Hepatology, University of Rochester Medical Center, Rochester, NY 14642, USA.
Gastrointest Endosc. 2012 Jun;75(6):1286-7. doi: 10.1016/j.gie.2011.06.008. Epub 2011 Sep 8.