The Significance of Carbohydrate Antigen 19-9, Carcinoembryonic Antigen, Calcium and Zinc as Biomarkers in Sera of Colorectal Cancer Patients. Baghdad Science Journal, Iraq, Baghdad, v. 21, n. 12(Suppl.), p. 3971–3979, 2024. DOI: 10.21123/bsj.2024.8660. Disponível em: https://bsj-ojs.uobaghdad.edu.iq/index.php/BSJ/article/view/8660.. Acesso em: 1 jun. 2025.