title: Relevance of gastric achlorhydria to human carcinogenesis.
mesh_terms: D000126:Achlorhydria / Q000150:complications*; D000752:Anemia, Pernicious / Q000150:complications / Q000503:physiopathology; D005743:Gastrectomy / Q000009:adverse effects; D005750:Gastric Juice / Q000378:metabolism; D006801:Humans; D009603:Nitroso Compounds / Q000009:adverse effects; D013274:Stomach Neoplasms / Q000453:epidemiology / Q000209:etiology*; D014628:Vagotomy / Q000009:adverse effects
chemical_list: D009603:Nitroso Compounds