MedicalResearch.com Interview with: [caption id="attachment_66106" align="alignleft" width="200"] Dr. Martins[/caption] Silvia S. Martins, MD, PhD Associate Dean for Faculty Professor of Epidemiology Director, Substance Use Epidemiology Unit Co-Director, Substance Abuse Epidemiology T32 Program Department of Epidemiology Columbia University Mailman School of Public Health New York, NY MedicalResearch.com: What is the background for this study? Response: Much has been speculated on whether the enactment of medical and recreational cannabis laws can have a role in decreasing prescriptions for opioid pain relievers, opioid use and misuse, opioid use disorder, and overdose in the U.S. However, findings on the associations of medical cannabis laws alone and recreational cannabis las + medical cannabis laws with opioid-related outcomes are mixed. By the end of 2019, 32 U.S. states had adopted medical marijuana laws (MCL) alone. All states that went on to adopt recreational marijuana laws (RCL) had previously adopted an MCL.