TODANI, A. K.; TODANI, K. Yolk sac count matters. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, [S. l.], v. 9, n. 1, p. 444–447, 2019. DOI: 10.18203/2320-1770.ijrcog20196065. Disponível em: https://www.ijrcog.org/index.php/ijrcog/article/view/7625. Acesso em: 4 oct. 2025.