title: Assisted expiratory chest radiography: an effective technique for the diagnosis of foreign-body aspiration.
mesh_terms: D000005:Abdomen; D000402:Airway Obstruction / Q000000981:diagnostic imaging*; D001980:Bronchi; D002675:Child, Preschool; D005069:Evaluation Studies as Topic; D005547:Foreign Bodies / Q000000981:diagnostic imaging*; D006801:Humans; D007223:Infant; D011312:Pressure; D013902:Radiography, Thoracic / Q000379:methods*; D012119:Respiration; D013679:Technology, Radiologic