Efficacy and safety of single-dose onabotulinumtoxinA in the treatment of symptoms of osteoarthritis of the knee: results of a placebo-controlled, double-blind study.
McAlindon TE, Schmidt U, Bugarin D, Abrams S, Geib T, DeGryse RE, Kim K, Schnitzer TJ. Efficacy and safety of single-dose onabotulinumtoxinA in the treatment of symptoms of osteoarthritis of the knee: results of a placebo-controlled, double-blind study. Osteoarthritis Cartilage. 2018 10; 26(10):1291-1299.