Effect of Opioid vs Nonopioid Medications on Pain-Related Function in Patients With Chronic Back Pain or Hip or Knee Osteoarthritis Pain: The SPACE Randomized Clinical Trial.
JAMA. 2018 Mar 6;319(9):872-882. doi: 10.1001/jama.2018.0899.
JAMA. 2018.
PMID: 29509867
Free PMC article.
Clinical Trial.