Comparative efficacy of topical 4% hydroquinone vs. 4% hydroquinone plus 10% mandelic acid in the treatment of melasma. J Pak Assoc Dermatol [Internet]. 2018 Dec. 13 [cited 2026 Jul. 31];28(3):311-4. Available from: https://www.jpad.com.pk/index.php/jpad/article/view/1265