Singh, N., S. . Ngwenya, and J. Molepo. “The Microbiology of Head and Neck Space Infections at the Maxillofacial Clinic at Livingstone Hospital”. South African Dental Journal, vol. 75, no. 4, May 2020, pp. 192-7, doi:10.17159/2519-0105/2020/v75no4a4.