Leite, E., Silvestre, L., Mendes de Almeida, J. C., Metrass, M. J. and Victorino, R. (2006) “Duodenal adenocarcinoma: differential diagnosis issues”, Internal Medicine. Lisboa, Portugal, 13(4), pp. 274–277. Available at: https://revista.spmi.pt/index.php/rpmi/article/view/1661 (Accessed: 18 April 2025).