Dowling, MS, L.S., Gatchel, PhD, R.J., Adams, PhD, L.L., Stowell, PhD, A.W. and Bernstein, MS, PhD, D. 2007. An evaluation of the predictive validity of the Pain Medication Questionnaire with a heterogeneous group of patients with chronic pain. Journal of Opioid Management. 3, 5 (Sep. 2007), 257–266. DOI:https://doi.org/10.5055/jom.2007.0013.