Nie, M., Zhao, J., Zhang, G., Tang, J., Zhu, W. and Zhang, Q. 2022. The effect of platelet rich plasma combined with celecoxib on knee function and pain in patients with knee osteoarthritis. Pakistan Journal of Medical Sciences. 38, 4 (Mar. 2022). DOI:https://doi.org/10.12669/pjms.38.4.5558.