“Prevelance Survey for Assessing Intensity of Group A Beta Hemolytic Streptococci (GABHS) Subclinical Infection Rate in School Children: A Cross Sectional Study”. Global Journal of Medical Research, vol. 13, no. F3, May 2013, pp. 1-6, https://medicalresearchjournal.org/index.php/GJMR/article/view/325.