Abstract
Lung cancer screening can reduce the mortality of lung cancer, the leading cause of cancer death worldwide. Real world screening experience highlights areas for improvement in a complex and changing world, particularly ethnic disparity, and the potential for new and emerging risk factors, in addition to well known risk of smoking and asbestos exposure. Biomarkers offer the promise of objective risk assessment but are not yet ready for clinical practice. This review discusses some of the major issues faced by lung cancer screening and the potential role for biomarkers.
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