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Fig 1. Right oblique view of maximum intensity projection of 3D contrast-enhanced MRA of the neck, showing bilateral proximal duplication of the vertebral arteries. Vertical arrows point to the 2 origins of the left vertebral artery. Curved arrow points to the union of the 2 left vertebral artery components. Transverse arrows point to the 2 origins of the right vertebral artery. Arrowhead points to the union of the 2 right vertebral artery components.
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