title: On the relationship between epidemiology and policy.
authors.affiliation: Centre for Addiction and Mental Health, Toronto, Canada. sameer.imtiaz@gmail.com.|Institute of Medical Science, University of Toronto, Toronto, Canada. sameer.imtiaz@gmail.com.
authors.forename: Sameer
authors.initials: S
authors.lastname: Imtiaz
authors.affiliation: Centre for Addiction and Mental Health, Toronto, Canada.|International Agency for Research on Cancer, Lyon, France.
authors.forename: Kevin D
authors.initials: KD
authors.lastname: Shield
authors.affiliation: Centre for Addiction and Mental Health, Toronto, Canada.|Dalla Lana School of Public Health, University of Toronto, Toronto, Canada.
authors.forename: Michael
authors.initials: M
authors.lastname: Roerecke
authors.affiliation: Centre for Addiction and Mental Health, Toronto, Canada.|Institute for Clinical Evaluative, Sciences, Toronto, Canada.
authors.forename: Joyce
authors.initials: J
authors.lastname: Cheng
authors.affiliation: Centre for Addiction and Mental Health, Toronto, Canada.|Institute of Medical Science, University of Toronto, Toronto, Canada.|Dalla Lana School of Public Health, University of Toronto, Toronto, Canada.|Factor-Inwentash Faculty of Social Work, University of Toronto, Toronto, Canada.
authors.forename: Svetlana
authors.initials: S
authors.lastname: Popova
authors.affiliation: Centre for Addiction and Mental Health, Toronto, Canada.|Department of Psychiatry, University of Toronto, Toronto, Canada.|Centre for Applied Research in Mental Health and Addiction, Simon Fraser University, Vancouver, Canada.
authors.forename: Benedikt
authors.initials: B
authors.lastname: Fischer
authors.affiliation: Centre for Addiction and Mental Health, Toronto, Canada.|Institute of Medical Science, University of Toronto, Toronto, Canada.|Dalla Lana School of Public Health, University of Toronto, Toronto, Canada.|Department of Psychiatry, University of Toronto, Toronto, Canada.|Institute for Clinical Psychology and Psychotherapy, Technische Universität Dresden, Dresden, Germany.
authors.forename: Jürgen
authors.initials: J
authors.lastname: Rehm
mesh_terms: D002188:Cannabis; D006291:Health Policy; D002189:Marijuana Abuse; D008385:Marijuana Smoking
keywords: Cannabis; epidemiology; policy; public health; substance; substance use harms