. Author manuscript; available in PMC: 2013 May 1.
Published in final edited form as: Gastrointest Endosc. 2012 Jan 31;75(5):1092–1097. doi: 10.1016/j.gie.2011.12.009
© 2011 American Society for Gastrointestinal Endoscopy. Published by Mosby, Inc. All rights reserved.