REKSODIPUTRO, MIRTA H., et al. “INCUBATION OF PLATELET-RICH FIBRIN MATRIX WITH MESENCHYMAL STEM CELLS IMPROVES MATRIX STIFFNESS”. International Journal of Applied Pharmaceutics, vol. 12, no. 3, Oct. 2020, pp. 111-6, doi:10.22159/ijap.2020.v12s3.39604.