title: How to optimize staging in early non-small cell lung cancer.
mesh_terms: D001707:Biopsy, Needle; D002289:Carcinoma, Non-Small-Cell Lung / Q000000981:diagnostic imaging / Q000473:pathology*; D006801:Humans; D008175:Lung Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology*; D008481:Mediastinoscopy; D009367:Neoplasm Staging / Q000379:methods*; D011859:Radiography; D014055:Tomography, Emission-Computed