Determination of Fetal gestational age in singleton pregnancies: Accuracy of ultrasonographic placenta thickness and volume at a Nigerian tertiary Hospital. AJBR [Internett]. 30. mai 2022 [sitert 8. juli 2026];25(2):113-9. Tilgjengelig på: https://www.ojshostng.com/index.php/ajbr/article/view/1758