Zhang, C., Wu, T. and Shen, N. (2022) “Effect of platelet-rich plasma combined with tranexamic acid in the treatment of melasma and its effect on the serum levels of vascular endothelial growth factor, endothelin-1 and melatonin”, Pakistan Journal of Medical Sciences, 38(8). doi: 10.12669/pjms.38.8.6786.