Cervical Length and Progesterone: Contribution of Ultrasonography to Decide To Whom Administer the Progesterone. Global Journal of Medical Research, [S. l.], v. 14, n. E2, p. 27–34, 2014. Disponível em: https://medicalresearchjournal.org/index.php/GJMR/article/view/621. Acesso em: 10 aug. 2026.