1. Department of Medical Imaging; The Ottawa Hospital; University of Ottawa; Ottawa Ontario Canada
2. The Ottawa Hospital; Ottawa Ontario Canada
3. University of Ottawa; Ottawa Ontario Canada
4. Royal Victoria Hospital; Barrie Ontario Canada
5. Sunnybrook Hospital; Toronto Ontario Canada
6. Clinical Epidemiology Program; Ottawa Hospital Research Institute; Ottawa Ontario Canada
7. Department of Epidemiology and Community Medicine; University of Ottawa; Ottawa Ontario Canada
8. Department of Pathology; The Ottawa Hospital; Ottawa Ontario Canada