Basha J, Appasani S, Vaiphei K, Gupta V, Singh K, Kochhar R
Department of Gastroenterology, Postgraduate Institute of Medical Education and Research, Chandigarh, India.
Endoscopy. 2013;45 Suppl 2 UCTN:E116-7. doi: 10.1055/s-0032-1326111. Epub 2013 May 28.