Radiation protection; Protection progress and exposure data.
D004496:Education, Continuing; D006077:Government Agencies; D006801:Humans; D011829:Radiation Dosage; D011835:Radiation Protection; D011859:Radiography; D013679:Technology, Radiologic / Q000193:education; D014481:United States; D014486:United States Food and Drug Administration; D014964:X-Ray Therapy