Chen, MD, L., Houghton, BA, M., Seefeld, BS, L., Malarick, BSN, RN, C. and Mao, MD, PhD, J. 2018. Opioid therapy for chronic pain: Physicians’ attitude and current practice patterns. Journal of Opioid Management. 7, 4 (Jan. 2018), 267–276. DOI:https://doi.org/10.5055/jom.2011.0068.