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Marijuana Research Study looking for volunteers ages 18-50. Eligible participants must be marijuana users with a current medical marijuana registration card to participate in a focus group about marijuana’s effects on mood and behavior at Brown University. Receive $40 by completing the...

Marijuana Research Study looking for volunteers ages 18-50. Eligible participants must be marijuana users with a current medical marijuana registration card to participate in a focus group about marijuana’s effects on mood and behavior at Brown University. Receive up to $40 by completing the...