title: [Letter: Nitrate--nitrite--nitrosamine--cancer?].
mesh_terms: D006801:Humans; D009369:Neoplasms / Q000139:chemically induced*; D009566:Nitrates / Q000009:adverse effects*; D009573:Nitrites / Q000009:adverse effects*; D009602:Nitrosamines / Q000009:adverse effects*
chemical_list: D009566:Nitrates; D009573:Nitrites; D009602:Nitrosamines
vernacular_title: Nitrat - nitrit - nitrosamin - cancer