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...