title: Toward optimal use of radiographs. Should admission and preoperative chest films be routine?
mesh_terms: D003362:Cost-Benefit Analysis; D003955:Diagnostic Tests, Routine; D006300:Health Services Misuse; D006801:Humans; D011300:Preoperative Care; D013902:Radiography, Thoracic / Q000191:economics / Q000706:statistics & numerical data*