Zeng, C., Doherty, M., Persson, M., Yang, Z., Sarmanova, A., Zhang, Y., …Zhang, W. (2021). Comparative efficacy and safety of acetaminophen, topical and oral non-steroidal anti-inflammatory drugs for knee osteoarthritis: evidence from a network meta-analysis of randomized controlled trials and real-world data. Osteoarthritis and Cartilage, 29(9), 1242-1251. https://doi.org/10.1016/j.joca.2021.06.004