Study Links Medical Marijuana Dispensaries to Reduced Mortality From Opioid Overdose | National Institute on Drug Abuse (NIDA) 2017-05-15 Leave a Comment on Study Links Medical Marijuana Dispensaries to Reduced Mortality From Opioid Overdose | National Institute on Drug Abuse (NIDA) Source: Study Links Medical Marijuana Dispensaries to Reduced Mortality From Opioid Overdose | National Institute on Drug Abuse (NIDA)