An x-ray investigation of the development of the frontal sinuses in children.
D000293:Adolescent; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D005626:Frontal Sinus / Q000000981:diagnostic imaging / Q000254:growth & development*; D006801:Humans; D007223:Infant; D011859:Radiography