KANNAN, B.; RENGASAMY, C. K. Attitude of obstetricians regarding labour analgesia and limitations in practising it. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, [S. l.], v. 6, n. 2, p. 388–391, 2017. DOI: 10.18203/2320-1770.ijrcog20170076. Disponível em: https://www.ijrcog.org/index.php/ijrcog/article/view/1571. Acesso em: 26 feb. 2026.