1. Department of Radiology Hamilton Health Sciences, McMaster University Hamilton Ontario Canada
2. Department of Radiology and Epidemiology University of Ottawa; Associate Scientist Ottawa Hospital Research Institute Clinical Epidemiology Program Ottawa Ontario Canada
3. The Ottawa Hospital Research Institute Clinical Epidemiology Program, University of Ottawa School of Epidemiology and Public Health Ottawa Ontario Canada
4. Department of Diagnostic Imaging Juravinski Hospital and Cancer Centre, Hamilton Health Sciences, McMaster University Hamilton Ontario Canada
5. Department of Surgery Juravinski Hospital and Cancer Centre, Hamilton Health Sciences, McMaster University Hamilton Ontario Canada
6. Department of Medical Oncology Juravinski Hospital and Cancer Centre, Hamilton Health Sciences, McMaster University Hamilton Ontario Canada
7. Department of Pathology and Molecular Medicine Juravinski Hospital and Cancer Centre, Hamilton Health Sciences, McMaster University Hamilton Ontario Canada