Silalahi, Ramos, Frans Lazio, and Silvia Witarsih. “Platelet-Rich Plasma Injections for Hip Osteoarthritis : A Systematic Review”. World Journal of Current Medical and Pharmaceutical Research 5, no. 6 (December 5, 2023): 268-274. Accessed February 10, 2025. https://wjcmpr.com/index.php/journal/article/view/301.