Teen Cannabis, Cigarette, and Prescription and Illicit Drug Use Drops in States With Legal Medical Marijuana - according to data from a long-standing nationally representative survey of nearly 1.2 million middle and high school students.

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Teen Cannabis, Cigarette, and Prescription and Illicit Drug Use Drops in States With Legal Medical Marijuana - according to data from a long-standing nationally representative survey of nearly 1.2 million middle and high school students.