title: Epidemiology of gastric cancer.
mesh_terms: D004781:Environmental Exposure; D005247:Feeding Behavior; D005260:Female; D006801:Humans; D007564:Japan; D008297:Male; D010435:Pepsinogens / Q000097:blood; D012737:Sex Factors; D013274:Stomach Neoplasms / Q000453:epidemiology* / Q000209:etiology / Q000235:genetics / Q000473:pathology; D014481:United States
chemical_list: D010435:Pepsinogens