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APA Citation
Volpe, N., Migliavacca, C., Dall'Asta, A., Politi, S., Schera, G. B. L., Pilu, G., Frusca, T., & Ghi, T. (2018). intrapartum ultrasound examination of fetal shoulder following head delivery. Ultrasound in obstetrics & gynecology, 52, 803–805. http://access.bl.uk/ark:/81055/vdc_100073686028.0x00002c