Schoedel, PhD, K. A., McMorn, PhD, S., Chakraborty, MStat, B., Potts, MS, S. L., Zerbe, RN, K., & Sellers, MD, PhD, E. M. (2018). Positive and negative subjective effects of extended-release oxymorphone versus controlled-release oxycodone in recreational opioid users. Journal of Opioid Management, 7(3), 179–192. https://doi.org/10.5055/jom.2011.0061