PAIBULSIRICHIT, K.; CHAIPAKDI, P. Effects of Intramuscular Pethidine on Labor Duration: A prospective cohort study. Thai Journal of Obstetrics and Gynaecology, Bangkok, Thailand, v. 34, n. 2, p. 101–112, 2026. DOI: 10.66650/tjog.v34i2.274119. Disponível em: https://he02.tci-thaijo.org/index.php/tjog/article/view/274119. Acesso em: 1 oct. 2026.