Rana Surinder Singh, Bhasin Deepak Kumar, Rao Chalapathi
Department of Gastroenterology, Post Graduate Institute of Medical Education and Research (PGIMER), Sector 12, Chandigarh 160012, India.
Endosc Ultrasound. 2012 Oct;1(3):165-6. doi: 10.7178/eus.03.009.