CENTURION, D. (1994) “Immunohistochemical Study on the Expression of P53 Protein and Proliferating Markers (Kl 67 and PCNA) in Colo rectal Neoplastic Lesions”, Turkish Journal of Gastroenterology, 5(2), pp. 318–324. Available at: https://www.turkjgastroenterol.org/index.php/tjg/article/view/413 (Accessed: 1 January 2026).