title: Invited commentary.
authors.affiliation: Department of Cardiothoracic Surgery, Klinikum der Johan Wolfgang Goethe Universitat, Frankfurt am Main, 60 590, Germany. fieguth@em.uni-frankfurt.de
authors.forename: Hans G
authors.initials: HG
authors.lastname: Fieguth
mesh_terms: D002289:Carcinoma, Non-Small-Cell Lung / Q000401:mortality* / Q000473:pathology / Q000628:therapy*; D006801:Humans; D008175:Lung Neoplasms / Q000401:mortality* / Q000473:pathology / Q000628:therapy*; D009367:Neoplasm Staging; D009426:Netherlands / Q000453:epidemiology; D018579:Patient Selection; D012189:Retrospective Studies; D012307:Risk Factors; D016019:Survival Analysis