Ahsan, M., R. Ranjan, S. Chandra, and K. Mayank. “Comparison of Efficacy and Safety of Oral Azithromycin and Oral Doxycycline in Acne Vulgaris”. International Journal of Basic & Clinical Pharmacology, vol. 8, no. 5, Apr. 2019, pp. 913-7, doi:10.18203/2319-2003.ijbcp20191575.