Etropolski, MD M, Lange, MD, MSc B, Goldberg, PhD J, Steup, Dipl.-Stat. A, Rauschkolb, MD, PhD C. A pooled analysis of patient-specific factors and efficacy and tolerability of tapentadol extended release treatment for moderate to severe chronic pain. J of Opioid Management [Internet]. 2013 Sep. 1 [cited 2024 May 2];9(5):343-56. Available from: https://wmpllc.org/ojs/index.php/jom/article/view/644