SAHOO, I.; DEY, M.; A., J. Association of first trimester serum level of placental growth factor (PlGF) and cervical length with onset of preterm labour. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, [S. l.], v. 8, n. 4, p. 1641–1645, 2019. DOI: 10.18203/2320-1770.ijrcog20191234. Disponível em: https://www.ijrcog.org/index.php/ijrcog/article/view/6314. Acesso em: 16 feb. 2025.