1. Joint Department of Medical Imaging, University Medical Imaging Toronto; University Health Network–Mount Sinai Hospital–Women's College Hospital, University of Toronto, 200 Elizabeth St, Toronto, ON M5G 2C4, Toronto, ON, Canada
2. Department of Radiology, University of British Columbia, Vancouver General Hospital, 899 W 12th Ave, Vancouver, BC V5Z 1M9, Canada
3. Department of Radiology (F.M.F.) and Department of Obstetrics and Gynecology (A.R.G.), Brigham and Women's Hospital, 1620 Tremont St, Suite OBC-3-010, Boston, MA 02120
4. Diagnostic and Interventional Radiology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
5. Department of Radiological Sciences, Oncology and Pathology, Sapienza University/Policlinico Umberto I, Viale Regina Elena 324, 00161 Rome, Italy
6. Section of Abdominal Imaging and Nuclear Radiology Department, Cleveland Clinic, Imaging Institute, 9500 Euclid Ave, JB3, Cleveland, OH 44195
7. Division of Surgery and Interventional Science, UCL, 43-45 Foley St, 3rd Floor, Charles Bell House, London W1W 7TS, United Kingdom
8. Departments of Radiology, University College London Hospital NHS Foundation Trust, London, United Kingdom