CHAEMSAITHONG, P.; RAUNGRONGMORAKOT, K.; PROMSONTHI, P. Progesterone for Prevention of Preterm Birth. Thai Journal of Obstetrics and Gynaecology, Bangkok, Thailand, v. 20, n. 4, p. 222–230, 2012. Disponível em: https://he02.tci-thaijo.org/index.php/tjog/article/view/4692. Acesso em: 29 aug. 2026.