T. A. Cassidy, MPH, E. Thorley, MPH, R. A. Black, PhD, A. DeVeaugh-Geiss, PhD, S. F. Butler, PhD, and P. Coplan, ScD, “Abuse of reformulated OxyContin: Updated findings from a sentinel surveillance sample of individuals assessed for substance use disorder”, J of Opioid Management, vol. 13, no. 6, pp. 425–440, Dec. 2017.