title: Editorial: Why does peptic ulcer happen?
mesh_terms: D000367:Age Factors; D000368:Aged; D001241:Aspirin / Q000009:adverse effects; D005260:Female; D006801:Humans; D008875:Middle Aged; D010437:Peptic Ulcer / Q000139:chemically induced / Q000188:drug therapy / Q000209:etiology*; D012737:Sex Factors
chemical_list: D001241:Aspirin