DOI: 10.1055/s-00000009

American Journal of Perinatology

References

Berghella V, Roman A, Daskalakis C, Ness A, Baxter JK.
Gestational age at cervical length measurement and incidence of preterm birth.

Obstet Gynecol 2007;
110 (2 Pt 1): 311-317

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