Rana Surinder Singh, Sharma Vishal, Sharma Ravi, Gupta Rajesh, Bhasin Deepak Kumar
Department of Gastroenterology (Surinder Singh Rana, Vishal Sharma, Ravi Sharma, Deepak Kumar Bhasin), Chandigarh, India.
Department of Surgery (Rajesh Gupta), Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, India.
Ann Gastroenterol. 2015 Apr-Jun;28(2):290.