National Institute on Drug Abuse, 2019.
 The Health Effects of Cannabis and Cannabinoids: The Current State of Evidence and Recommendations for Research”, National Academies of Sciences, Engineering, and Medicine; Health and Medicine Division; Board on Population Health and Public Health Practice; Committee on the Health Effects of Marijuana: An Evidence Review and Research Agenda.
Washington (DC): National Academies Press (US); 2017.
 Medicinal Cannabis Network, 2019.
 Journal of Experimental Medicine, 2012.