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Published Online:https://doi.org/10.1176/ajp.125.3.370

Current knowledge of the use of marihuana, its physical and mental effects, and its relation to crime and to other drug use are reviewed. The authors feel that a reappraisal of the social and legal policies regarding marihuana use is needed to resolve the crisis brought about by the rapid increase in its use despite the severe penalties prescribed for violation of the marihuana laws.

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