Aslam, A.; Hafeez, L.; Shafi, A.; Yousaf, A.; Khan, A. N.; Tahir, R. Comparison of Efficacy of Hydroquinone Versus Hydroquinone Plus Tretinoin Plus Topical Steroids in Patients With Melasma. J Pak Assoc Dermatol 2021, 31, 179-183.