[1]
M. S. Cepeda, MD, PhD, D. Fife, MD, J. A. Berlin, ScD, G. Mastrogiovanni, BS, and Y. Yuan, PhD, “Characteristics of prescribers whose patients shop for opioids: Results from a cohort study”, J of Opioid Management, vol. 8, no. 5, pp. 285–291, Sep. 2012.