1. Department of Surgery; Gastrointestinal Unit; B. P. Koirala Institute of Health Sciences; Dharan Nepal
2. Clinic of Internal, Family Medicine and Oncology; Faculty of Medicine; Center of Oncosurgery; Institute of Oncology; Vilnius University; Vilnius Lithuania
3. Department of Radiodiagnosis and Imaging; B. P. Koirala Institute of Health Sciences; Dharan Nepal
4. Department of Pathology; B. P. Koirala Institute of Health Sciences; Dharan Nepal