1. Faculty of Graduates Studies, University of Sri Jayewardenepura, Nugegoda, Sri Lanka; Department of Fundamentals of Nursing, Faculty of Nursing, University of Colombo, Sri Lanka
2. Department of Clinical Sciences, Faculty of Medicine, General Sir John Kotelawala Defence University, Ratmalana, Sri Lanka
3. Department of Nursing and Midwifery, Faculty of Allied Health Sciences, University of Sri Jayewardenepura, Nugegoda, Sri Lanka
4. National Cancer Control Programme, Ministry of Health, Colombo, Sri Lanka
5. Department of Community Medicine, Faculty of Medical Sciences, University of Sri Jayewardenepura, Nugegoda, Sri Lanka