Rana S S, Chaudhary V, Gupta N, Sampath S, Mittal B R, Bhasin D K
Department of Gastroenterology, Post Graduate Institute of Medical Education and Research, Chandigarh, India.
Endoscopy. 2013;45 Suppl 2 UCTN:E317-8. doi: 10.1055/s-0033-1344565. Epub 2013 Sep 5.