Cervical expression of elafin and secretory leukocyte peptidase inhibitor does not predict preterm delivery in twin pregnancy – results from a pilot study. Journal of Medical Science, Poznań, Poland, v. 90, n. 1, p. e490, 2021. DOI: 10.20883/medical.e490. Disponível em: https://horkruks.ump.edu.pl/index.php/JMS/article/view/490. Acesso em: 17 aug. 2025.