Malhotra Advitya, Guturu Praveen, Basim Mohammed S, Raju Gottumukkala S
Department of Gastroenterology and Hepatology, University of Texas Medical Branch, Galveston, Texas, USA.
Gastrointest Endosc. 2009 Sep;70(3):552-3; discussion 553. doi: 10.1016/j.gie.2009.04.029.