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
VA Office of Research and Development
Erin E Krebs; Amy Gravely; Sean Nugent; Agnes C Jensen; Beth DeRonne; Elizabeth S Goldsmith; Kurt Kroenke; Matthew J Bair; Siamak Noorbaloochi