1. Department of Surgery, Faculty of Medical Sciences, University of Sri Jayewardenepura, Kalubowila-Dehiwela, Sri Lanka
2. University Surgical Unit, Colombo South Teaching Hospital, Kalubowila-Dehiwela, Sri Lanka
3. Department of Radiology, Colombo South Teaching Hospital, Sri Lanka
4. Department of Pathology, Colombo South Teaching Hospital, Sri Lanka