Chumak, Z. V., and N. V. Shapoval. “The Processes of Apoptosis and Telomerase Activity in Endometrial Cells under Different Morphological Conditions”. Journal of Education, Health and Sport, vol. 8, no. 5, May 2018, pp. 235-43, https://apcz.umk.pl/JEHS/article/view/5547.