title: Patients exposure from diagnostic X-rays: an analysis of 1972--1975 NEXT data.
mesh_terms: D003201:Computers; D004501:Education, Medical; D004781:Environmental Exposure; D006748:Hospital Departments / Q000592:standards*; D006801:Humans; D008963:Molar / Q000000981:diagnostic imaging; D010361:Patients; D011331:Private Practice / Q000592:standards; D011829:Radiation Dosage; D011832:Radiation Injuries / Q000517:prevention & control; D013902:Radiography, Thoracic; D011871:Radiology / Q000193:education; D011872:Radiology Department, Hospital / Q000592:standards* / Q000639:trends; D013131:Spine / Q000000981:diagnostic imaging; D013679:Technology, Radiologic / Q000193:education; D000078329:Workforce; D014965:X-Rays