“A Cross-Sectional Study on Polish Medical Students’ Knowledge of Fertility Awareness-Based Methods”. Kwartalnik Naukowy Fides et Ratio 55, no. 3 (September 22, 2023): 19–26. Accessed June 6, 2025. https://fidesetratio.com.pl/ojs/index.php/FetR/article/view/1195.