title: Postoperative chemotherapy for n2 non-small-cell lung cancer: conclusions are not black and white, but gray.
authors.forename: Nasser H
authors.initials: NH
authors.lastname: Hanna
authors.forename: Lawrence H
authors.initials: LH
authors.lastname: Einhorn
mesh_terms: D002289:Carcinoma, Non-Small-Cell Lung / Q000188:drug therapy / Q000532:radiotherapy / Q000601:surgery / Q000628:therapy*; D006801:Humans; D008175:Lung Neoplasms / Q000188:drug therapy / Q000532:radiotherapy / Q000601:surgery / Q000628:therapy*; D015201:Meta-Analysis as Topic; D009367:Neoplasm Staging; D012189:Retrospective Studies; D018426:SEER Program; D016896:Treatment Outcome