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APA Citation
Usman, S., Kahrs, B., Barton, H., Salvesen, K., Eggebø, T., & Lees, C. (n.d.). p06.07: Time to delivery based on sonographic assessment prior to forceps and vacuum: a pilot study. Ultrasound in obstetrics & gynecology, 52, 157. http://access.bl.uk/ark:/81055/vdc_100090060675.0x000033