DOI: 10.1055/s-00000009

American Journal of Perinatology

References

Bibbo C, Rouse CE, Cantonwine DE, Little SE, McElrath TF, Robinson JN.
Angle of progression on ultrasound in the second stage of labor and spontaneous vaginal delivery.

Am J Perinatol 2018;
35 (04) 413-420

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