S. D. Shah, B. D. Mehta, M. A. Borkar, and R. C. Aswani, “Study of safety and efficacy of autologous platelet rich plasma combined with fractional CO2 laser in the treatment of post acne scars: a comparative simultaneous split-face study”, Int J Res Med Sci, vol. 5, no. 4, pp. 1344–1351, Mar. 2017.