Steponavičienė, Laura, et al. “Reproductive Factors and Breast Cancer Risk in Lithuanian Women: A Population-Based Cohort Study”. 2020. Acta Medica Lituanica, vol. 27, no. 2, Mar. 2024, pp. 70-75, https://doi.org/10.15388/Amed.2020.27.2.4.