AY, S. S.; BIRGE, Özer; BAKIR, M. S.; YUMRU, A. E. Efficacy of letrozole versus clomiphene citrate for infertile women with polycystic ovary syndrome. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, [S. l.], v. 10, n. 8, p. 2944–2949, 2021. DOI: 10.18203/2320-1770.ijrcog20212938. Disponível em: https://www.ijrcog.org/index.php/ijrcog/article/view/10401. Acesso em: 4 dec. 2025.