Nigar, Zahra, et al. “Comparative Efficacy of Topical 20% Azelaic Acid Alone Versus 4% Hydroquinone 4% As an Adjuvant to Oral Tranexamic Acid in Melasma”. Pakistan Armed Forces Medical Journal, vol. 75, no. 3, June 2025, pp. 545-9, https://doi.org/10.51253/pafmj.v75i3.10788.