[X-ray examination of the lungs--always or sometimes?].
D003362:Cost-Benefit Analysis; D006801:Humans; D008168:Lung / Q000000981:diagnostic imaging*; D008171:Lung Diseases / Q000000981:diagnostic imaging; D013902:Radiography, Thoracic / Q000191:economics / Q000706:statistics & numerical data*
Zdjecie płuc--zawsze czy czasami?