Martell, Bridget A., Patrick G. O'Connor, Robert D. Kerns, William C. Becker, Knashawn H. Morales, Thomas R. Kosten, and David A. Fiellin. "
Systematic review: opioid treatment for chronic back pain: prevalence, efficacy, and association with addiction."
Annals of internal medicine 146, no. 2 (2007): 116-27.
Abstract