title: [Efficacy of anti-ulcer agents judged from background factors of stomach ulcer].
mesh_terms: D000293:Adolescent; D000328:Adult; D000897:Anti-Ulcer Agents / Q000627:therapeutic use*; D002648:Child; D002927:Cimetidine / Q000627:therapeutic use; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D013276:Stomach Ulcer / Q000188:drug therapy*; D013997:Time Factors
chemical_list: D000897:Anti-Ulcer Agents; D002927:Cimetidine