1. Department of Pathology University of Ibadan/University College Hospital Ibadan Nigeria
2. Department of Community Medicine Edo University Iyamho Iyamho Nigeria
3. Department of Surgery/Paediatric Surgery University of Ibadan/University College Hospital Ibadan Nigeria
4. Department of Paediatrics (Haematology & Oncology Unit) University of Ibadan/University College Hospital Ibadan Nigeria