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Ex vivo examples of injured spinal cords (15 minutes post-injury) showing differences in primary hemorrhage caused by injury devices used at Ohio State (OSU; used the IH impactor with vertical (arrow) contusion centered just off mid-line) or University of Maryland (UM; 10g × 25mm weight drop with contusion centered over dorsolateral sulcus at an angle (arrow) of ~5° (n=1 rat/injury device).
