By The Conversation Global M-J Milloy, University of British Columbia and M. Eugenia Socias, University of British Columbia
North America is in the midst of a drug overdose disa…

Read more: Marijuana, Medical Marijuana, Social Drugs, Addiction and Substance Abuse, Drug Use, University of British Columbia, Crack Cocaine, Politics News

Read this full story…..: The Conversation Global: Study: cannabis may reduce crack use