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Aortic anatomy with clamping locations.
(1) Large animal model: One balloon catheter was placed at the height of the left subclavian artery and the second one directly upstream of the aortic bifurcation. (2) Medium sized animal model: Because of the strict segmental blood supply to the spinal cord in rabbits only infrarenal aortic crossclamping is needed. (3) Small animal model: Clamping of the aorta and left subclavian artery.
