A. Amatya, M. K. Chaudhary, D. K. Khan, and E. A. Rajouria, “A Comparative Study of Azithromycin Versus Doxycycline in the Treatment of Acne Vulgaris”, Nepal J Dermatol Venereol & Leprol, vol. 10, no. 1, pp. 33–40, Jul. 2012.