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Dr. Herbert Kleber Says More Marijuana Research Needed: NPR

Evidence on Marijuana's Health Effects is Hazy at Best
March 4, 2014

"We should have been doing a lot more research to find out just how useful it is, how it affects the brain, et cetera, et cetera," according to Dr. Herbert Kleber, a Columbia University psychiatrist and drug abuse researcher.

But he says it's been hard to study the effects of Cannabis sativa, the plant that produces marijuana.

 Listen now:  http://www.npr.org/blogs/health/2014/03/03/283545932/evidence-on-marijuanas-health-effects-is-hazy-at-best

 

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