title: Invited commentary.
authors.affiliation: Division of Thoracic Surgery, The Johns Hopkins Medical Institutions, 600 N. Wolfe St, Blalock 240, Baltimore, MD 21287, USA. syang@jhmi.edu
authors.forename: Stephen C
authors.initials: SC
authors.lastname: Yang
mesh_terms: D002289:Carcinoma, Non-Small-Cell Lung / Q000401:mortality / Q000473:pathology* / Q000601:surgery*; D018572:Disease-Free Survival; D008175:Lung Neoplasms / Q000401:mortality / Q000473:pathology* / Q000601:surgery*; D008197:Lymph Node Excision / Q000401:mortality; D008207:Lymphatic Metastasis / Q000473:pathology*; D008481:Mediastinoscopy; D009367:Neoplasm Staging; D011013:Pneumonectomy; D011379:Prognosis; D012189:Retrospective Studies