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APA Citation
Dall'Asta, A., Grisolia, G., Nanni, M., Volpe, N., Schera, G. B. L., Frusca, T., & Ghi, T. (2019). sonographic demonstration of fetal esophagus using three‐dimensional ultrasound imaging. Ultrasound in obstetrics & gynecology, 54, 746–751. http://access.bl.uk/ark:/81055/vdc_100098043547.0x000039