title: Nitrates and gastric cancer.
mesh_terms: D004032:Diet / Q000009:adverse effects; D006801:Humans; D009566:Nitrates / Q000009:adverse effects*; D013274:Stomach Neoplasms / Q000139:chemically induced* / Q000401:mortality; D014874:Water Pollutants, Chemical / Q000009:adverse effects
chemical_list: D009566:Nitrates; D014874:Water Pollutants, Chemical