title: Efficacy of cytology in the diagnosis of lung cancer.
mesh_terms: D001707:Biopsy, Needle; D005260:Female; D006801:Humans; D008168:Lung / Q000473:pathology; D008175:Lung Neoplasms / Q000473:pathology*; D008297:Male; D013183:Sputum / Q000166:cytology; D007507:Therapeutic Irrigation