Background Little is known about event-level patterns of marijuana co-or tri-use with alcohol
and tobacco. Thus, the study goal was to examine patterns of same-day alcohol, cigarette …

Objectives The liberalisation of cannabis laws, the increasing availability and potency of
cannabis has renewed concern about the risk of psychosis with cannabis. Methods The …

Canada legalized recreational cannabis use for adults on October 17, 2018 with decision-
makers emphasising the need to reduce cannabis use among youth. We sought to …

Introduction Medical cannabis is increasingly being used for a variety of health conditions as
more states implement legislation permitting medical use of cannabis. Little is known about …

Abstract Background In 2013, Uruguay became the first country in the world to legalize
recreational cannabis, instituting a non-commercial state regulatory model of production and …

Objectives To review the metrics and findings of studies evaluating effects of drug
decriminalisation or legal regulation on drug availability, use or related health and social …

Background The overall prevalence of US young adult alcohol use has decreased, but little
is known about historical change in related behaviors such as simultaneous alcohol and …

Marijuana liberalization policies are gaining momentum in the USA, coupled with limited
federal interference and growing dispensary industry. This evolving regulatory landscape …

Background Recent trend studies suggest that marijuana use is on the rise among the
general population of adults ages 18 and older in the United States. However, little is known …

Background Historical shifts have taken place in the last twenty years in marijuana policy.
The impact of medical marijuana laws (MML) on use of substances other than marijuana is …