SAHU, M.; ROUT, N. R. Comparative study of clomiphene citrate versus letrozole as first-line ovulation induction drug in infertile polycystic ovary syndrome women. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, [S. l.], v. 9, n. 7, p. 2948–2952, 2020. DOI: 10.18203/2320-1770.ijrcog20202738. Disponível em: https://www.ijrcog.org/index.php/ijrcog/article/view/8032. Acesso em: 16 oct. 2025.