CHAUHAN, P.; SHIRODKAR, S. D. Effect of epidural analgesia on the duration of labour and pains: a comparative study. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, [S. l.], v. 9, n. 4, p. 1451–1456, 2020. DOI: 10.18203/2320-1770.ijrcog20201204. Disponível em: https://www.ijrcog.org/index.php/ijrcog/article/view/7767. Acesso em: 13 oct. 2025.