GUPTA, N.; ATHOKPAM, M. Active management of third stage of labour: a comparative study of intra-umbilical oxytocin versus intramuscular oxytocin. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, [S. l.], v. 6, n. 8, p. 3434–3437, 2017. DOI: 10.18203/2320-1770.ijrcog20173458. Disponível em: https://www.ijrcog.org/index.php/ijrcog/article/view/3032. Acesso em: 12 nov. 2025.