Mitev, Konstantin, and Aleksandar Longurov. 2019. “Intra-Articular Platelet-Rich Plasma Injections for Treating Knee Pain Associated With Articular Cartilage and Degenerative Meniscal Lesions”. Open Access Macedonian Journal of Medical Sciences 7 (15):2484-87. https://doi.org/10.3889/oamjms.2019.674.