KAMEL, M. A.; AMIN, A. F.; FARGHALY, T. A.; FARRAG, N. A. Clomiphene citrate plus N-acetyl cysteine versus letrozole for induction of ovulation in infertile patients with polycystic ovarian disease: a randomized clinical trial. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, [S. l.], v. 8, n. 10, p. 3959–3963, 2019. DOI: 10.18203/2320-1770.ijrcog20194362. Disponível em: https://www.ijrcog.org/index.php/ijrcog/article/view/7077. Acesso em: 4 dec. 2025.