1. Department of Surgery University of Toronto Toronto Ontario Canada
2. Department of Surgery University of Ilorin Teaching Hospital Ilorin Kwara State Nigeria
3. Department of Surgery Federal Medical Center Owo Ondo State Nigeria
4. Department of Anatomic and Molecular Pathology Faculty of Basic Medical Sciences, University of Lagos Lagos Nigeria
5. Department of Surgery National Hospital Abuja Abuja Nigeria
6. Department of Epidemiology and Biostatistics Memorial Sloan Kettering Cancer Center New York City New York USA
7. African Research Group for Oncology Ile Ife Osun State Nigeria
8. Department of Surgery University of Maiduguri Maiduguri Nigeria
9. Global Cancer Disparities Initiative Memorial Sloan Kettering Cancer Center New York City New York USA
10. Department of Surgery, Division of General Surgery Dalhousie University Halifax Nova Scotia Canada
11. Department of Pathology Memorial Sloan Kettering Cancer Center New York City New York USA
12. Department of Surgery Lagos State University Teaching Hospital Ikeja Lagos State Nigeria
13. Department of Radiology College of Health Sciences, Obafemi Awolowo University Ile Ife Osun State Nigeria
14. Department of Morbid Anatomy College of Health Sciences, Obafemi Awolowo University Ile Ife Osun State Nigeria
15. Department of Surgery Memorial Sloan Kettering Cancer Center New York City New York USA
16. Department of Surgery College of Health Sciences, Obafemi Awolowo University Ile Ife Osun State Nigeria