Affiliation: | 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 |