title: Invited commentary.
authors: Department of Surgery, Saskatoon Regional Health, 1702 20th St W, Saskatoon, SK, Canada S7M 0Z9. rmcgory@dal.ca
authors: Rod
authors: R
authors: Mcgory
mesh_terms: D001707:Biopsy, Needle / Q000295:instrumentation* / Q000379:methods; D001999:Bronchoscopy / Q000379:methods; D002289:Carcinoma, Non-Small-Cell Lung / Q000473:pathology; D019160:Endosonography / Q000379:methods*; D006801:Humans; D008175:Lung Neoplasms / Q000473:pathology*; D008198:Lymph Nodes / Q000473:pathology*; D008482:Mediastinum / Q000473:pathology; D009361:Neoplasm Invasiveness / Q000473:pathology; D012680:Sensitivity and Specificity