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Gross brain pathology. Representative photographs of the rat brains following exposure of the rats to compressed air-driven and oxyhydrogen-driven blasts of various peak overpressures. Blast exposure resulted in larger blood vessel diameters and hematomas (white arrows), which were more prominent with increasing peak overpressures. The vascular damage was also more prominent with compressed air- compared to oxyhydrogen-driven blasts of similar peak overpressures.
