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Am J Obstet Gynecol. 1990 Aug;163(2):466-76.

Transvaginal ultrasonographic detection of congenital anomalies in the first trimester.

Author information

1
Department of Obstetrics and Gynecology, Yale University School of Medicine, New Haven, Connecticut.

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.

PMID:
2201187
[Indexed for MEDLINE]

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