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Pathology tests on the liver performed by using hematoxylin and eosin (H & E) staining. The hollow arrows indicate vacuolation or acidophilic degeneration; black arrows indicate necrosis or degeneration; hollow triangles indicate congestion; black triangles indicate hemorrhage. Pathological changes were evaluated by a veterinary pathologist and scored 0 to 4 in a blinded study (N = 3).
