U. Ott, PhD, MSPH, M. S. Thiese, PhD, MSPH, B. B. Ronna, BS, K. Hegmann, MSPH, CIC, and K. T. Hegmann, MD, MSPH, “Opioid use: Case-control analyses of worker’s compensation data”, J of Opioid Management, vol. 14, no. 4, pp. 273–281, Jul. 2018.