1. Department of Radiology, Sidney Kimmel Medical College at Jefferson, Thomas Jefferson University Hospital, Jefferson Health, 132 S 10th St, Rm 1096, Philadelphia, PA 19107
2. Mater Misericordiae University Hospital, Dublin, Ireland
3. Cappagh National Orthopaedic Hospital, Mater Misericordiae University Hospital, Dublin, Ireland
4. Leeds Teaching Hospitals NHS Trust, Leeds Biomedical Research Centre, Leeds, UK
5. The University of British Columbia, Faculty of Medicine, Vancouver, BC, Canada