Comparison of efficacy of hydroquinone versus hydroquinone plus tretinoin plus topical steroids in patients with melasma. J Pak Assoc Dermatol [Internet]. 2021 Aug. 6 [cited 2026 Jul. 26];31(2):179-83. Available from: https://www.jpad.com.pk/index.php/jpad/article/view/1609