Analysis of cycle observation sheets in a group of women of reproductive age. Kwartalnik Naukowy Fides et Ratio, [S. l.], v. 51, n. 3, p. 41–51, 2022. DOI: 10.34766/fetr.v3i51.1115. Disponível em: https://fidesetratio.com.pl/ojs/index.php/FetR/article/view/1115. Acesso em: 7 jun. 2025.