1. Department of Evaluation and Research Services (DERS) Fraser Health, BC, Canada; Iran University of Medical Sciences, Iran
2. University of British Columbia, Canada; University of California, USA; Centre for Health Evaluation and Outcome Sciences (CHÉOS), Canada
3. University of Toronto, Canada
4. University of British Columbia, Canada
5. Centre for Addiction and Mental Health, Canada; Krembil Research Institute, Canada; University of Toronto, Canada