PT - JOURNAL ARTICLE AU - MARY-ANN FITZCHARLES AU - YORAM SHIR TI - Another Nasty Effect of Opioids: Attenuating the Benefits of Motivational Interviewing in Fibromyalgia? AID - 10.3899/jrheum.170076 DP - 2017 Apr 01 TA - The Journal of Rheumatology PG - 407--409 VI - 44 IP - 4 4099 - http://www.jrheum.org/content/44/4/407.short 4100 - http://www.jrheum.org/content/44/4/407.full SO - J Rheumatol2017 Apr 01; 44