Seeking the safest X-ray picture.
D004865:Equipment and Supplies, Hospital / Q000592:standards*; D006077:Government Agencies; D006801:Humans; D011835:Radiation Protection / Q000379:methods*; D011839:Radiation, Ionizing / Q000592:standards*; D014481:United States; D014965:X-Rays / Q000592:standards*