Kgomo, Mpho, Ali A. Elnagar, Jaco Nagel, and Taole Mokoena. “Prevalence of Squamous Cell Carcinoma of the Esophagus in a Single Tertiary Center of South Africa: A Cross Sectional Analytic Study”. Journal of Public Health in Africa 8, no. 1 (August 17, 2017). Accessed March 28, 2024. https://www.publichealthinafrica.org/jphia/article/view/563.