Objective To evaluate the efficacy at each stage of mucosa gland atrophy in the patients with Chronic atrophic gastritis(CAG) by the two combination therapy of the folic acid with Low dose Vitamin E, and to compare the effect of treatment of the two combination therapy with that of the single use of Mo Luo Dan. Method Divide 396 patients with confirmed gastric mucosa gland atrophy, intestinal metaplasia, LGIEN(light, moderate dysplasia included),HGIEN(severe dysplasia) by endoscopic biopsy pathology into gr...