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. 1990 Aug;163(2):466-76.
doi: 10.1016/0002-9378(90)91177-e.

Transvaginal ultrasonographic detection of congenital anomalies in the first trimester

M T Cullen  1 , J Green, J Whetham, C Salafia, S Gabrielli, J C Hobbins
Affiliations

Transvaginal ultrasonographic detection of congenital anomalies in the first trimester

M T Cullen et al. Am J Obstet Gynecol. 1990 Aug.

Abstract

Transvaginal ultrasonography enables detailed visualization of the first-trimester pregnancy. Thirty-three structural anomalies have been diagnosed in the first trimester of pregnancy during a 2-year study period. An understanding of normal embryonic development is essential before attempting diagnosis in this gestational period.

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