Cytokeratin 20-positive hepatocellular carcinoma. European Journal of Histochemistry, [S. l.], v. 53, n. 4, p. e32, 2009. DOI: 10.4081/ejh.2009.e32. Disponível em: https://www.ejh.it/ejh/article/view/ejh.2009.e32. Acesso em: 7 jun. 2025.