KAMKONG, J.; PONGSAMAKTHAI, M.; SRIPIPATANAKUL, M.; TANGSIRIWATTHANA, T. The Effect of Hyoscine Butylbromide for Shortening the Active Phase of the First Stage of Labor: A randomized, double-blind, placebo-controlled trial. Thai Journal of Obstetrics and Gynaecology, Bangkok, Thailand, v. 32, n. 3, p. 245–253, 2024. DOI: 10.14456/tjog.2024.27. Disponível em: https://he02.tci-thaijo.org/index.php/tjog/article/view/265593. Acesso em: 17 sep. 2026.