DIXIT, A.; HOOD, M. M. Two true knots in the umbilical cord: a rare case report. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, [S. l.], v. 14, n. 6, p. 2003–2005, 2025. DOI: 10.18203/2320-1770.ijrcog20251602. Disponível em: https://www.ijrcog.org/index.php/ijrcog/article/view/15394. Acesso em: 2 oct. 2025.