Webster, MD, L., Richards, MD, PhD, P., Stern, PhD, W. and Kelen, RN, BA, CNN, R. 2018. A double-blind, placebo-controlled study of dual-opioid treatment with the combination of morphine plus oxycodone in patients with acute postoperative pain. Journal of Opioid Management. 6, 5 (Jan. 2018), 329–340. DOI:https://doi.org/10.5055/jom.2010.0030.