Gutiérrez-JiménezJ., Mendoza-OrozcoM. I., Vicente-SerranoA., Luna-CazáresL. M., Feliciano-GuzmánJ. M., Girón-HernándezJ. A., and VidalJ. E. “Virulence Genes and Resistance to Antibiotics of Beta-Hemolytic Streptococci Isolated from Children in Chiapas, Mexico”. The Journal of Infection in Developing Countries, Vol. 12, no. 02, Feb. 2018, pp. 80-88, doi:10.3855/jidc.9679.