1. Lanka Hospital, Colombo, Sri Lanka
2. National Cancer Institute, Colombo, Sri Lanka
3. Department of Statistics, University of Sri Jayewardenepura, Colombo, Sri Lanka
4. Lanka Hospital Diagnostics, Colombo, Sri Lanka
5. Asiri Surgical Hospital, Colombo, Sri Lanka
6. Faculty of Medicine, University of Ruhuna, Matara, Sri Lanka
7. Sir John Kotelawala Defence University, Colombo, Sri Lanka