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APA Citation
Ishii, Y., Inamura, N., Kawazu, Y., Kayatani, F., & Arakawa, H. (n.d.). 'I‐shaped' sign in the upper mediastinum: a novel potential marker for antenatal diagnosis of d‐transposition of the great arteries. Ultrasound in obstetrics & gynecology, 41, 667–671. http://access.bl.uk/ark:/81055/vdc_100024528743.0x000038