1. Department of Oncology, Queen’s University, Kingston, ON K7L 3N6, Canada
2. Department of Oncology, Faculty of Medicine and Health Sciences, University of Zimbabwe, Harare P.O. Box MP 167, Zimbabwe
3. Division of Radiotherapy and Oncology, Parirenyatwa Group of Hospitals, Harare P.O. Box CY 198, Zimbabwe
4. Department of ObGYN, Faculty of Medicine, University of Botswana, Private Bag UB 0022, Gaborone, Botswana
5. Department of Radiation Oncology, Tata Medical Center, Kolkata 700 160, West Bengal, India
6. Department of Surgery, College of Medicine, University of Ibadan, Ibadan P.M.B 5017, Nigeria