Friedrichsdorf, MD, FAAP, S.J., Postier, MPH, A.C., Foster, MEd, L.P., Lander, MD, T.A., Tibesar, MD, R.J., Lu, MS, Y. and Sidman, MD, J.D. 2015. Tramadol versus codeine/acetaminophen after pediatric tonsillectomy: A prospective, double-blinded, randomized controlled trial. Journal of Opioid Management. 11, 4 (Jul. 2015), 283–294. DOI:https://doi.org/10.5055/jom.2015.0277.