Zafar Mahmood, Ikram Ullah, Sohail Tirmizi, Mohammad Yousuf, Zubair Anwar, Hammad Raza, “Prevalence of Group A Beta Hemolytic Streptococcus Related Pharyngitis in Pakistan”, Pakistan Journal of Medical & Health Sciences, vol. 16, no. 07, p. 334, Aug. 2022.