DOI: 10.1055/s-00000089

Ultraschall in der Medizin - European Journal of Ultrasound

References

Sepulveda W, Sebire NJ, Hughes K et al.
The lambda sign at 10–14 weeks of gestation as a predictor of chorionicity in twin pregnancies.

Ultrasound Obstet Gynecol 1996;
7: 421-423

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