Sari, R. and Agung Wibawa, A. (2022) “Topical Application of Platelet-Rich Fibrin Liquid as a Novel and Minimally Invasive Treatment for Post-Gingival Depigmentation: A Case Report”, KnE Medicine, 2(1), pp. 190-199. doi: 10.18502/kme.v2i1.10851.