Agarwal Brij B, Jha Sandeep K, Agarwal Sneh, Goyal Karan
Department of Surgical Disciplines, Ganga Ram Institute of Post-graduate Medical Education and Research, Sir Ganga Ram Hospital, New Delhi, India.
Saudi J Gastroenterol. 2014 Jan-Feb;20(1):1-4. doi: 10.4103/1319-3767.126304.