S. Alavi, E. Abolhasani, S. Asadi, and M. Nilforoushzadeh, “Combination of Q-Switched Nd:YAG and Fractional Erbium:YAG Lasers in Treatment of Melasma: A Randomized Controlled Clinical Trial”, J laser Med Sci, vol. 8, no. 1, pp. 1–6, Jan. 2017.