Beaudoin, MD, MS, F. L., G. N. Banerjee, MPH, and M. J. Mello, MD, MPH. “State-Level and System-Level Opioid Prescribing Policies: The Impact on Provider Practices and Overdose Deaths, a Systematic Review”. Journal of Opioid Management, vol. 12, no. 2, Mar. 2016, pp. 109-18, doi:10.5055/jom.2016.0322.