DOI:
10.1055/s-00000009
American Journal of Perinatology
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References
Esplin MS, Elovitz MA, Iams JD. et al; nuMoM2b Network.
Predictive accuracy of serial transvaginal cervical lengths and quantitative vaginal fetal fibronectin levels for spontaneous preterm birth among nulliparous women.
JAMA 2017;
317 (10) 1047-1056
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