Manchikanti, MD L, Giordano, PhD J, Boswell, MD, PhD MV, Fellows, MA B, Manchukonda, BDS R, Pampati, MSc V. Psychological factors as predictors of opioid abuse and illicit drug use in chronic pain patients. J of Opioid Management [Internet]. 2007 Mar. 1 [cited 2024 Apr. 29];3(2):89-100. Available from: https://wmpllc.org/ojs/index.php/jom/article/view/1172