Ranjan, Shivani, RS Gupta, and S Gupta. 2017. “A Study of the Efficacy of Skin Needling and Platelet Rich Plasma in the Treatment of Acne Scars”. Nepal Journal of Dermatology, Venereology &Amp; Leprology 15 (1):17-23. https://doi.org/10.3126/njdvl.v15i1.18047.