[1]
N. F. Kapadia, G. Khalid, T. Burhany, and T. Nakhoda, “Comparative efficacy and safety and efficacy of systemic 13-cis retinoic acid 20mg/day vs. 40mg/day in acne vulgaris”, J Pak Assoc Dermatol, vol. 15, no. 3, pp. 238–241, Dec. 2016.