DOI:
10.1055/s-00030576
Revista Brasileira de Ginecologia e Obstetrícia / RBGO Gynecology and Obstetrics
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References
Tsoi E, Akmal S, Geerts L, Jeffery B, Nicolaides KH.
Sonographic measurement of cervical length and fetal fibronectin testing in threatened preterm labor.
Ultrasound Obstet Gynecol 2006;
27 (04) 368-372
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