title: Medical radiation protection: a long view.
mesh_terms: D006801:Humans; D011829:Radiation Dosage; D011835:Radiation Protection / Q000592:standards*; D011859:Radiography / Q000592:standards*; D014057:Tomography, X-Ray Computed / Q000592:standards*; D014481:United States; D014486:United States Food and Drug Administration