C. A. da S. B. Braga et al., “Streptococcus spp. RECURRENT ACUTE PHARYNGO-TONSILLITIS: FREQUENCY AND THE ANTIMICROBIAL SUSCEPTIBILITY PROFILE”, Rev Patol Trop, vol. 44, no. 2, pp. 124–134, Jul. 2015, doi: 10.5216/rpt.v44i2.36639.