Summary of population exposure to x rays in the United States, 1964.
D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D005260:Female; D005471:Fluoroscopy; D006801:Humans; D008297:Male; D008875:Middle Aged; D011159:Population Surveillance; D011859:Radiography; D011861:Radiography, Dental; D011878:Radiotherapy; D014481:United States