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a: Control group: normal hepatic lobules (
), central vein (
) and polyhedral cell (
); b: Nicotine-treated group (1 mg/kg bw/day): dilatation of central vein (
); c: CMC-EDBE-FA treated group (1 mg/kg bw/day): no dilatation of central vein (
); d: CMC-EDBE-FA supplemented group (1 mg/kg bw/day): repairing of dilatation of central vein (
).
