Dey, S., J. J., and K. A. P. “Acute Pyogenic Meningoencephalitis Due to Streptococcus Pneumoniae Serotype 11A in a Previously Healthy Child: A Case Report”. International Journal of Research in Medical Sciences, vol. 13, no. 9, Aug. 2025, pp. 3833-5, doi:10.18203/2320-6012.ijrms20252517.