Researchers with the University of Kentucky College of Pharmacy, West Virginia University School of Public Health, and Brown University School of Public Health compiled a literature review of PDMP-related studies published from June 2018 to December 2019. This literature synthesis has identified several themes related to the evolution of PDMPs as data systems and research tools in the context of an opioid epidemic shifting to illicit opioids.  Delcher C, Pauly N, Moyo P “Advances in prescription drug monitoring program research: a literature synthesis” (June 2018 to December 2019). Current Opinion in Psychiatry. 2020 Apr;1.