COMPARISON OF EXERCISE THERAPY, NON-STEROIDAL ANTI-INFLAMMATORY DRUGS, AND OPIOIDS FOR KNEE OSTEOARTHRITIS PAIN: A SYSTEMATIC REVIEW AND NETWORK META-ANALYSIS. (April 2022) - Juhl, C.B.; Simic, M.; Pihl, K.; Berthelsen, D.B.; Day, R.; Koes, B.; Thorlund, J.B.