MARWAH, S.; SHARMA, S.; KAUR, H.; GUPTA, M.; GORAYA, S. Surveillance of congenital malformations and their possible risk factors in a teaching hospital in Punjab. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, [S. l.], v. 3, n. 1, p. 162–167, 2016. Disponível em: https://www.ijrcog.org/index.php/ijrcog/article/view/808. Acesso em: 7 oct. 2025.