1. Department of Health Promotion and Education, Faculty of Public Health, College of Medicine, University of Ibadan, Ibadan, Nigeria
2. Department of Nursing, College of Medicine, University of Ibadan, Ibadan, Nigeria
3. Department of Radiation Oncology, University College Hospital, Ibadan, Nigeria
4. Department of Radiation Oncology, College of Medicine, University of Ibadan, Ibadan, Nigeria