Rana Surinder S, Bhasin Deepak K, Mehta Varun, Singh Kartar, Nada Riatmbhra
Department of Gastroenterology, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, India.
Gastrointest Endosc. 2008 Aug;68(2):375-6; discussion 376. doi: 10.1016/j.gie.2008.01.031. Epub 2008 Apr 23.