1. Faculty of Medicine, Department of Medical ImagingUniversity of Toronto Toronto Ontario Canada
2. Department of RadiologyNYU Langone Medical Center New York New York USA
3. Department of RadiologyUniversity of Ottawa Ottawa Ontario Canada
4. Department of Diagnostic Imaging, Sao PauloHospital Israelita Albert Einstein São Paulo Brazil
5. Departments of Surgery and Surgical OncologyUniversity of Toronto Toronto Ontario Canada