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Histopathological Characterization (H & E Staining 1000 ×) of liver in Swiss-Webster mice exposed to purified/functionalized MWCNT. A= Negative Control (Saline), B= saline+tween control, Control C= Positive Control (carbon black), D= 0.25 mg/kg/day, E= 0.5 mg/kg/day and F= 0.75 mg/kg/day.
