1. Faculty of Medicine, Dalhousie University, Halifax, NS, Canada
2. Department of Surgery, Dalhousie University, Halifax, NS, Canada
3. Department of Radiology, Dalhousie University, Halifax, NS, Canada
4. Department of Pathology, Dalhousie University, Halifax, NS, Canada
5. Department of Microbiology & Immunology and Pathology, Beatrice Hunter Cancer Research Institute, QEII Health Science Centre, Dalhousie University, Halifax, NS, Canada