title: Background radiation and estimated risks from low-dose irradiation.
mesh_terms: D001417:Background Radiation; D004781:Environmental Exposure; D004812:Epidemiologic Methods; D005720:Gamma Rays; D006801:Humans; D009381:Neoplasms, Radiation-Induced / Q000209:etiology; D011829:Radiation Dosage; D011839:Radiation, Ionizing; D011859:Radiography; D012306:Risk; D014481:United States; D014861:Washington