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APA Citation
Napolitano, R., Ohuma, E., Wanyonyi, S., Molloholli, M., Ash, S., & Papageorghiou, A. (n.d.). p13.08: Should we use the "ellipse" or "two diameters" method to measure fetal head and abdominal circumferences?. Ultrasound in obstetrics & gynecology, 44, 255–256. http://access.bl.uk/ark:/81055/vdc_100024917371.0x000015