SARKATE, P. S.; HIWALE, S. Relationship of umbilical coiling index and cord twist direction with adverse perinatal outcomes. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, [S. l.], v. 8, n. 9, p. 3782–3788, 2019. DOI: 10.18203/2320-1770.ijrcog20193815. Disponível em: https://www.ijrcog.org/index.php/ijrcog/article/view/6641. Acesso em: 27 oct. 2025.