DOI: 10.1055/s-00000009

American Journal of Perinatology

References

Fonseca EB, Celik E, Parra M, Singh M, Nicolaides KH. ; Fetal Medicine Foundation Second Trimester Screening Group.
Progesterone and the risk of preterm birth among women with a short cervix.

N Engl J Med 2007;
357 (05) 462-469

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