The landscape of marijuana laws has changed significantly over the past year. Of the five states with legalized or medical marijuana on the ballot, California, Massachusetts, Nevada and Maine all voted to fully legalize the use, cultivation, distribution and sale of marijuana. Currently, a total of eight states and Washington, DC will have fully legalized marijuana. Because of the sheer size of California, an estimated 21 percent of US Citizens now live somewhere with access to legal cannabis.

Researchers have been exploring the risks and benefits of marijuana for more than 40 years with recent focus on the potential risks and benefits of marijuana edibles, changing perceptions of marijuana, and marijuana in relationship to other forms of drug use.

RTI has extensive experience in cannabis research and has created a Marijuana Research webpage that addresses an array of aspects of cannabis use, including biological markers and effects on the brain, societal implications of medical, recreational, and underage use and the potential impact of legalization on product control and public policy.

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