Lakshmi C P, Vijayahari R, Kamalanathan S K, Rajesh G N, Verma S K
Department of Medical Gastroenterology, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India.
J Postgrad Med. 2013 Jan-Mar;59(1):61-2. doi: 10.4103/0022-3859.109501.