Orinya, A., O. Jimoh, J. Ejembi, H. Makarfi, C. N. Ani, R. Shittu, and M. M. Abdulaziz. “A Case Report of Acute Pharyngotonsillitis With Penicillin Treatment Failure in Multidrug-Resistant Streptococcus pyogenes”. Annals of Laboratory and Clinical Medicine 1, no. 1 (October 23, 2025): 41–43. Accessed April 14, 2026. https://alcm.org.ng/index.php/home/article/view/7.