JAROSZYŃSKA, Zuzanna and WIŚNIEWSKA, Katarzyna. Epidemiology of colorectal cancer (C18-C21) in Poland. Journal of Education, Health and Sport. Online. 21 October 2021. Vol. 11, no. 10, pp. 143-156. [Accessed 17 July 2024]. DOI 10.12775/JEHS.2021.11.10.013.