DOI:
10.1055/s-00000009
American Journal of Perinatology
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References
Conde-Agudelo A, Romero R, Hassan SS, Yeo L.
Transvaginal sonographic cervical length for the prediction of spontaneous preterm birth in twin pregnancies: a systematic review and meta-analysis.
Am J Obstet Gynecol 2010;
203 (02) 128.e1-128.e12
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