Widmer Jessica, Sharaiha Reem Z, Kahaleh Michel
Division of Gastroenterology and Hepatology, Weil Cornell Medical College, Cornell University, New York, New York, USA.
Gastrointest Endosc. 2015 Jan;81(1):222-3. doi: 10.1016/j.gie.2014.04.021. Epub 2014 Jun 2.