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Scanning electron microscopy (SEM) micrographs of (a) fresh meat from cull cows; (b) vacuum-impregnated meat at of 20.3 kPa, of 0.5 h, and of 0.5 h, and (c) vacuum-impregnated meat at of 71.1 kPa, of 4.0 h, and of 4.0 h at 80× magnification.
