Deepthi, M., and K. Narsimloo. “Role of Usage of Antibiotics in Pharyngitis: A Prospective Study”. International Journal of Otorhinolaryngology and Head and Neck Surgery, vol. 3, no. 2, Mar. 2017, pp. 303-7, doi:10.18203/issn.2454-5929.ijohns20171182.