Sikorski, P., M. Szamocka, A. Meder, M. A. Ameryk, and M. Świątkowski. “Simple Sugars in Fruit and the Presence of Colorectal Cancers and Polyps”. Journal of Education, Health and Sport, vol. 7, no. 12, Dec. 2017, pp. 461-74, https://apcz.umk.pl/JEHS/article/view/5229.