Cannabis Use Moderates the Relationship between Pain and Negative Affect in Adults with Opioid Use Disorder Marian Wilson, Hannah Y. Gogulski, Carrie Cuttler,  Teresa L. Bigand, Oladunni Oluwoye,Celestina Barbosa-Leiker, MaryLee A. Roberts Addictive Behaviors, 2017, 30 p. doi : 10.1016/j.addbeh.2017.10.012   Abstract Introduction : Adults in Medication-Assisted Treatment (MAT) for opioid addiction are at risk for substance use relapse and opioid overdose. They often have high rates of cannabis use and comorbid symptoms of pain, depression, and anxiety. Low levels of self-efficacy (confidence that one can self-manage symptoms) are linked to higher symptom burdens and increased substance use. The effects of cannabis use on symptom management [...]