1. Department of Pediatrics, University of British Columbia, Vancouver, British Columbia, Canada
2. Department of Pediatrics, School of Population and Public health, University of British Columbia, Vancouver, British Columbia, Canada
3. Faculty of Social and Human Sciences, University of Southampton, UK
4. Department of Medical Informatics, Biometry and Epidemiology - IBE, Chair for Public Health and Health Services Research, Research Unit for Biopsychosocial Health, Ludwig-Maximilians-University (LMU), Munich, Germany
5. Swiss Paraplegic Research, Nottwil, Switzerland
6. Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada
7. The Aga Khan University, East Africa Nairobi, Kenya