1. Division of Radiodiagnosis, Department of Intervention Radiology, Indian Institute of Liver and Digestive Sciences, Kolkata, West Bengal, India
2. Department of Radiodiagnosis, Ruby General Hospital, Kolkata, West Bengal, India
3. Department of Radiology and Imaging, Tata Medical Center, Kolkata, West Bengal, India
4. Division of General Medicine, Department of Gastroenterology, IPGMER and SSKM Hospital, Kolkata, West Bengal, India
5. Department of Pathology, GI Pathology, School of Digestive and Liver Diseases, IPGMER, Kolkata, West Bengal, India
6. Department of Gastroenterology, Indian Institute of Liver and Digestive Sciences, Kolkata, West Bengal, India