Chehab Bassem M, Dakhil Shaker R, Nassif Imad I
Department of Medicine, University of Kansas School of Medicine-Wichita, Kansas, Wichita, Kansas 67214, USA.
Gastrointest Endosc. 2008 May;67(6):998-1000. doi: 10.1016/j.gie.2007.09.045. Epub 2008 Jan 31.