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Effect of exposure to K2Cr2O7 on ultrastructure of rat liver. Ultrastructural changes of liver tissues from control, K2Cr2O7 (2 mg/kg), K2Cr2O7 (4 mg/kg), K2Cr2O7 (6 mg/kg), and K2Cr2O7 (4 mg/kg) + Res groups were observed by transmission electron microscopy. 20000 × magnification.
