Wilson Jason A, DeLegge Mark H
Division of Gastroenterology and Hepatology, Digestive Disease Center, Medical University of South Carolina, Charleston, South Carolina 29412, USA.
Gastrointest Endosc. 2009 Aug;70(2):391-3. doi: 10.1016/j.gie.2008.10.048. Epub 2009 Mar 14.