PRADHAN, N.; PRADHAN, R. Single umbilical artery: A case report. Nepal Journal of Obstetrics and Gynaecology, [S. l.], v. 1, n. 2, p. 59–60, 2009. Disponível em: https://www.nepjol.info/index.php/NJOG/article/view/2400. Acesso em: 12 may. 2024.