[1] University of Toronto,Factor
[2] University of Toronto,Inwentash Faculty of Social Work
[3] Memorial University,Joint Centre for Bioethics
[4] The University of Western Ontario,Division of Community Health & Humanities, Health Sciences Centre, Faculty of Medicine
[5] Harm Reduction Peer Street Outreach Coordinator,Department of Epidemiology and Biostatistics, Schulich School of Medicine and Dentistry
[6] Queen West Central Toronto Community Health Centre,School of Public Health and Social Policy, Faculty of Human and Social Development
[7] University of Victoria,Dalla Lana School of Public Health
[8] University of Toronto,undefined