Infection with Helicobacter pylori.
D000818:Animals; D002273:Carcinogens; D004195:Disease Models, Animal; D004781:Environmental Exposure; D005756:Gastritis / Q000150:complications* / Q000175:diagnosis / Q000453:epidemiology / Q000628:therapy; D016481:Helicobacter Infections / Q000150:complications* / Q000175:diagnosis / Q000453:epidemiology / Q000628:therapy; D016480:Helicobacter pylori; D006801:Humans; D012107:Research Design; D013274:Stomach Neoplasms / Q000139:chemically induced / Q000382:microbiology*
D002273:Carcinogens