DOI:
10.1055/s-00000020
Geburtshilfe und Frauenheilkunde
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References
Esplin MS, Elovitz MA, Iams JD. et al.
Predictive Accuracy of Serial Transvaginal Cervical Lengths and Quantitative Vaginal Fetal Fibronectin Levels for Spontaneous Preterm Birth Among Nulliparous Women.
JAMA 2017;
317: 1047-1056
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