Suligavi, S. S., Vishwanath, D. K., Gokale, S., & Doddamani, S. S. (2021). Diphtheria: a re-emerging infectious disease. International Journal of Otorhinolaryngology and Head and Neck Surgery, 7(3), 475–480. https://doi.org/10.18203/issn.2454-5929.ijohns20210681