Mehta, Charul, Asmita Patel, Diwakar Singh, and Bhavin Patel. “Prevalence of Diphtheria in a Tertiary Care Hospital of Western Part of India – A Clinicoepidemiological Study”. Indian Journal of Child Health 6, no. 11 (November 26, 2019): 581–583. Accessed December 5, 2025. https://mansapublishers.com/ijch/article/view/1877.