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Macroscopic examination of gastric mucosal changes in ethanol and vanillin pretreated rats. Representative stomachs of: (a) control (saline only); (b) Mucosal damage induced by ethanol; (c–e) vanillin pretreatment at low dose (50 mg/kg), medium dose (100 mg/kg) and high dose (200 mg/kg) and ethanol treated animals.
