1. Department of Radiology, Obafemi Awolowo University, Ile-Ife, Nigeria
2. Department of Radiology, Breast Imaging Service, Memorial Sloan Kettering Cancer Center, New York, NY
3. Department of Radiology, Lagos State University Teaching Hospital, Lagos, Nigeria
4. Department of Radiology, University of Benin Teaching Hospital, Benin, Nigeria
5. Department of Radiology, Nnamdi Azikiwe University, Amawbia, Nigeria
6. Department of Surgery, Division of General Surgery, University of British Columbia, Vancouver, BC, Canada
7. Department of Surgery, Obafemi Awolowo University, Ile-Ife, Nigeria
8. Department of Surgery, Division of General Surgery, Dalhousie University, Halifax, NS, Canada
9. Department of Surgery, Hepatobiliary Service, Memorial Sloan Kettering Cancer Center, New York, NY