Hussain, A.; Shahbaz, U.; Shaheen, E.; Ghias, A.; Raffad; Khalid, A.; Aman, S. . Comparison of Effectiveness and Safety of Topical 30% Metformin Versus 4% Hydroquinone in the Treatment of Epidermal Melasma. J Pak Assoc Dermatol 2024, 34, 73-79.