Rana Surinder S, Panda Naresh, Sinha Saroj K, Nada Ritambhra, Nagi Birinder, Bhasin Deepak K
Department of Gastroenterology, Histopathology, and Otorhinolaryngology, Postgraduate Institute of Medical Education and Research, Chandigarh, India.
Gastrointest Endosc. 2006 Jan;63(1):185-7. doi: 10.1016/j.gie.2005.07.042.