Chandrashekar, B. S., and V. N. “Effectiveness and Safety of a Combination of Sun Protection and Depigmentation Agent in the Treatment of Epidermal Hyperpigmentation”. International Journal of Research in Dermatology, vol. 7, no. 3, Apr. 2021, pp. 400-6, doi:10.18203/issn.2455-4529.IntJResDermatol20211699.