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Gastric ulcer index induced by ethanol in animal groups pre-treated by RDHE (A), GGHE (B) and NJHE (C). The results are expressed as mean ± SEM. (n = 7). The animals received: vehicle (water), ranitidine (50mg/kg), and doses of plant extract (20, 40 and 80 mg/kg, respectively). Statistical comparison was performed using analysis of variance (ANOVA) followed by post hoc Newman keuls test (* p < 0.05, ** p < 0.01 and *** p < 0.001
