1. Professor and Head, Division of Surgical Gastroenterology, School of Digestive and Liver Diseases, Institute of Postgraduate Medical Education and Research, West Bengal, India
2. Professor, Division of Gastroenterology, School of Digestive and Liver Diseases, Institute of Postgraduate Medical Education and Research, West Bengal, India
3. Assistant Professor, Division of GI Pathology, School of Digestive and Liver Diseases, Institute of Postgraduate Medical Education and Research, West Bengal, India