title: Invited commentary.
authors.affiliation: Department of Thoracic Surgery, Institute for Medicine and Public Health, Vanderbilt University Medical Center, Veterans Affairs Hospital, 609 Oxford House, Nashville, TN 37232-5734, USA.
authors.forename: Stephen A
authors.initials: SA
authors.lastname: Deppen
authors.forename: Eric L
authors.initials: EL
authors.lastname: Grogan
mesh_terms: D002289:Carcinoma, Non-Small-Cell Lung / Q000601:surgery*; D005260:Female; D006801:Humans; D008175:Lung Neoplasms / Q000601:surgery*; D008297:Male; D009364:Neoplasm Recurrence, Local / Q000401:mortality*; D016609:Neoplasms, Second Primary / Q000453:epidemiology*