Published on in Vol 5, No 1 (2019): Jan-Jun
1 Mailman School of Public Health, Columbia University, New York, NY, United States
2 British Columbia Centre on Substance Use, Vancouver, BC, Canada
3 School of Population and Public Health, University of British Columbia, Vancouver, BC, Canada
4 Department of Medicine, University of British Columbia, Vancouver, BC, Canada
5 School of Medicine, University College Dublin, Dublin, Ireland