Where medical marijuana is legal, illegal use climbs

Reuters, 26 April 2017
Author: Andrew M. Seaman
“Where medical marijuana is legal, adults are more likely to use the drug illegally and are at an increased risk of cannabis use disorder, according to a new study. Researchers found that illegal use of marijuana and rates of cannabis use disorder rose to a greater extent in U.S. states that adopted laws legalizing marijuana for medical purposes than in states that didn’t adopt such laws.”
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