Rauck, MD RL, Bookbinder, MD SA, Bunker, MD TR, Alftine, MD CD, Ghalie, MD R, Negro-Vilar, MD, PhD A, de Jong, MD E, Gershon, MD S. The ACTION study: A randomized, open-label, multicenter trial comparing once-a-day extended-release morphine sulfate capsules (AVINZA®) to twice-a-day controlled-release oxycodone hydrochloride tablets (OxyContin®) for the treatment of chronic, moderate to severe low back pain. J of Opioid Management [Internet]. 2006 May 1 [cited 2023 Dec. 5];2(3):155-66. Available from: https://wmpllc.org/ojs/index.php/jom/article/view/1125