title: The current concepts of the epidemiology of peptic ulcer.
mesh_terms: D001241:Aspirin / Q000009:adverse effects; D004032:Diet / Q000009:adverse effects; D005260:Female; D006801:Humans; D008297:Male; D010435:Pepsinogens / Q000097:blood; D010437:Peptic Ulcer / Q000139:chemically induced / Q000453:epidemiology* / Q000209:etiology; D012737:Sex Factors; D014481:United States
chemical_list: D010435:Pepsinogens; D001241:Aspirin