Chatni S, Betigeri A M, Sadasivan S, Nair P, Narayanan V A, Balakrishanan V
Digestive Diseases Institute and Department of Pathology, Amrita Institute of Medical Sciences and Research Centre, Cochin, Kerala, India.
J Gastroenterol Hepatol. 2008 Jun;23(6):988. doi: 10.1111/j.1440-1746.2008.05464.x.