Zhang Z, Qiu Z, Wang Y, Qiu A, Liu J, Huang K, et al. Clinical study on the treatment of knee osteoarthritis with intra-articular injection of umbilical cord mesenchymal stem cells combined with platelet rich plasma . Am J Transl Med [Internet]. 2026 Feb. 3 [cited 2026 Apr. 25];9(1):34-41. Available from: https://journals3.publicknowledgeproject.org/index.php/ajtm/article/view/3403