DOI: 10.1055/s-00000089

Ultraschall in der Medizin - European Journal of Ultrasound

References

Berghella V, Kuhlman K, Weiner S. et al
Cervical funneling: sonographic criteria predictive of preterm delivery.

Ultrasound in obstetrics & gynecology: the official journal of the International Society of Ultrasound in Obstetrics and Gynecology 1997;
10: 161-166 . doi:10.1046/j.1469-0705.1997.10030161.x

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