DOI: 10.1055/s-00000089

Ultraschall in der Medizin - European Journal of Ultrasound

References

Committee on Practice Bulletins—Obstetrics.
ACOG Practice Bulletin No. 154: Operative Vaginal Delivery.

Obstet Gynecol 2015;
126: e56-e65 . Im Internet: http://www.ncbi.nlm.nih.gov/pubmed/26488523. doi:10.1097/AOG.0000000000001147

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