KITIPOONWONGWANID, K.; SOONGSATITANON, A. Transvaginal Ultrasound Measurement of the Uterocervical Angle for Prediction of Spontaneous Preterm Birth. Thai Journal of Obstetrics and Gynaecology, Bangkok, Thailand, v. 29, n. 2, p. 112–119, 2021. DOI: 10.14456/tjog.2021.14. Disponível em: https://he02.tci-thaijo.org/index.php/tjog/article/view/217105. Acesso em: 1 oct. 2026.