Promise and perils of marijuana deserve more scientific scrutiny

Limits on ability to study drug hamper efforts to weigh public health benefits, concerns

marijuana

HIGH HOPES  Cannabis plants such as this one yield marijuana and other substances that deserve expanded study for possible medical benefits, a large research review recommends. But negative physical and psychological effects of cannabis products can’t be ignored, the report says.

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Marijuana’s medical promise deserves closer, better-funded scientific scrutiny, a new state-of-the-science report concludes.