Usha Dutta1, Neha Berry1, Navin Kalra2, Deepak Gunjan1, Arunanshu Behra3, Shivojit Talukdar3, Atanu Biswas4, Adreesh Mukherjee4Department of 1Gastroenterology, 2Radiology and 3Surgery, Postgraduate Institute of Medical Education and Research, Chandigarh, India-160012
Department of 4Neurology, Bangur Institute of Neurosciences, Kolkata, India -700025