Żak, Klaudia, Milena Leziak, Sylwiusz Niedobylski, Michał Piwoński, and Katarzyna Laszczak. “An Impact of Selected Micronutrients on Fertility”. Journal of Education, Health and Sport 10, no. 9 (September 8, 2020): 216–227. Accessed January 25, 2025. https://apcz.umk.pl/JEHS/article/view/JEHS.2020.10.09.023.