GARG, D. P. Early vs late: Effect of epidural analgesia on labour. International Journal of Medical Science and Clinical Invention, [S. l.], v. 4, n. 7, 2017. DOI: 10.18535/ijmsci/v4i7.04. Disponível em: https://valleyinternational.net/index.php/ijmsci/article/view/883. Acesso em: 19 apr. 2024.