Heins, MD, A., Grammas, BS, M., Heins, RN, MSN, CRNP, J.K., Costello, MD, M.W., Huang, MS, K. and Mishra, PhD, S. 2006. Determinants of variation in analgesic and opioid prescribing practice in an emergency department. Journal of Opioid Management. 2, 6 (Nov. 2006), 335–340. DOI:https://doi.org/10.5055/jom.2006.0049.