Z. . Kończewska-Murdzek and M. Murdzek-Wierzbicka, “Child development in the womb”, FeR, vol. 29, no. 1, pp. 109–139, Mar. 2017, Accessed: Jul. 31, 2025. [Online]. Available: https://fidesetratio.com.pl/ojs/index.php/FetR/article/view/651