1. Department of Medical Imaging, McMaster University, Hamilton, Ontario, Canada
2. Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Ontario, Canada
3. Center for Bioethics, Harvard Medical School, Boston, MA
4. Department of Nuclear Medicine, Vancouver General Hospital, Vancouver, British Columbia, Canada
5. Department of Diagnostic Imaging, Trillium Health Partners, Mississauga, Ontario, Canada