Errors in the assessment of nasopharyngeal airway by radiography.
D002648:Child; D002675:Child, Preschool; D006801:Humans; D008961:Models, Structural; D009305:Nasopharynx / Q000000981:diagnostic imaging*; D010034:Otitis Media with Effusion / Q000000981:diagnostic imaging; D011858:Radiographic Magnification; D012399:Rotation; D013679:Technology, Radiologic