Yakymchuk, Yu. B., A. V. Boychuk, A. Yu. Franchuk, V. I. Koptyuk, and O. M. Yakymchuk. “TNF-α and TNF-R-1 Level in Pregnancy With Ecotopic Pregnancy”. Journal of Education, Health and Sport 9, no. 12 (December 28, 2019): 131–135. Accessed January 29, 2023. https://apcz.umk.pl/JEHS/article/view/JEHS.2019.09.12.015.