TYAGI, S.; AGARWAL, R. K.; AGRAWAL, M.; KAPOOR, M.; TIWARI, S. Study of vertical transmission of COVID-19 infection in COVID-19 positive obstetrical patients by comparing amniotic fluid and immediate neonatal COVID-19 RT-PCR. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, [S. l.], v. 10, n. 9, p. 3383–3388, 2021. DOI: 10.18203/2320-1770.ijrcog20213455. Disponível em: https://www.ijrcog.org/index.php/ijrcog/article/view/10618. Acesso em: 13 oct. 2025.