RAZAQ, R. A. Immunohistochemical Expression of Carbohydrate Antigen CA19-9 in Colorectal Tumors. Zanco Journal of Medical Sciences (Zanco J Med Sci), [S. l.], v. 14, n. 1 Special, p. 161–165, 2018. Disponível em: https://zjms.hmu.edu.krd/index.php/zjms/article/view/556. Acesso em: 3 may. 2024.