Szamocka, Małgorzata, et al. “Obesity, Type 2 Diabetes and Hormone Replacement Therapy Vs. Colorectal Tumors in the Elderly”. Journal of Education, Health and Sport, vol. 7, no. 6, June 2017, pp. 230-43, https://apcz.umk.pl/JEHS/article/view/4530.