1. Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
2. Department of Clinical Radiology, Cambridge University Hospitals NHS Foundation Trust, Cambridge, United Kingdom
3. Department of Radiology, Duke University Medical Center, Durham, North Carolina United States
4. Department of Radiology, University of Ottawa, Ottawa, Canada
5. UOC Radiodiagnostica Firenze 3, USL Toscana Centro, Firenze, Italy