E. Galia, PhD, Y. Williams, PhD, B. Van Hove, J. Pergolizzi, MD, M. Etropolski, MD, and G. Vorsanger, PhD, MD, “Evaluation of the tamper-resistant properties of tapentadol extended-release tablets: Results of in vitro laboratory analyses”, J of Opioid Management, vol. 10, no. 3, pp. 149–158, May 2014.