1. Department of Medical Imaging, University of Toronto, Toronto, ON, Canada.
2. Department of Radiology and Diagnostic Imaging, University of Alberta, WC Mackenzie Health Sciences Center, Edmonton, AB, Canada.
3. Department of Pediatrics, Division of Pediatric Rheumatology, University of Alberta, Edmonton, AB, Canada.
4. Department of Diagnostic Imaging, The Hospital for Sick Children, University of Toronto, 555 University Ave, Toronto, ON M5G 1X8, Canada.
5. Division of Rheumatology, The Hospital for Sick Children, University of Toronto, Toronto, ON, Canada.
6. Institute of Medical Sciences, University of Toronto, Toronto, ON, Canada.
7. Department of Translational Medicine, Peter Gilgan Centre for Research and Learning, Toronto, ON, Canada.
8. Hospital Library and Archive Services, The Hospital for Sick Children, Toronto, ON, Canada.