title: [Natural radioactivity in oil fields].
mesh_terms: D001417:Background Radiation; D004782:Environmental Health; D006801:Humans; D009787:Occupational Medicine; D010578:Petroleum; D011827:Radiation; D011851:Radioactivity; D014586:USSR
chemical_list: D010578:Petroleum
vernacular_title: Estetvennaia radioaktivnost' na neftepromyslakh.