SAMMON, Alastair M. Squamous Cancer of the Esophagus in Africa: A Causal Pathway Established. Asian Pacific Journal of Cancer Biology, [S. l.], v. 7, n. 3, p. 199–203, 2022. DOI: 10.31557/apjcb.2022.7.3.199-203. Disponível em: http://waocp.com/journal/index.php/apjcb/article/view/880. Acesso em: 9 jun. 2026.