D. S. K. Shankar, R. Kandhari, S. Varma, V. B. Mallela, R. Dixit, and R. Pereira, “A multicentric, prospective, observational study evaluating the practice pattern and use of fixed dose topical regimen for hyperpigmentation in intimate and high friction areas”, Int J Res Dermatol, vol. 9, no. 5, pp. 240–245, Aug. 2023.