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Left: MRA of human placenta; 3D reconstruction made using Osirix software viewed from the foetal side of the placenta. Key: CA, chorionic artery; PSA, primary stem artery; SSA, secondary stem artery; TSA, tertiary stem artery. Right: CTA of human placenta; 3D reconstruction made using Osirix software viewed from the foetal side of the placenta. Key: CA, chorionic artery; PSA, primary stem artery; SSA, secondary stem artery; TSA, tertiary stem artery.
