1. Maciag M. State marijuana laws in 2019 map [Internet]. Governing 2019 [cited 2020 Jun 16].
2. Peacock A, Leung J, Larney S, Colledge S, Hickman M, Rehm J, et al. Global statistics on alcohol, tobacco and illicit drug use: 2017 status report. Addiction. 2018;113(10):1905–26.
3. SAMHSA. 2018 National Survey of Drug Use and Health (NSDUH). Rockville: SAMHSA; 2018.
4. Prevalence of cannabis consumption in Canada [Internet]. Statistics Canada 2019 [cited 2020 Jun 16].
5. Stewart C. Cannabis use in the past 12 months in Europe as of 2018*, by country. Nov 26, 2019 [Internet]. Statista. 2019 [cited 2020 Jun 16].