title: Reply.
authors.affiliation: Department of Thoracic Surgery, "Sant'Andrea" Hospital, "Sapienza" University of Rome, Via di Grottarossa, 1035, 00189 Rome, Italy. Electronic address: giuliomaurizi@libero.it.
authors.forename: Giulio
authors.initials: G
authors.lastname: Maurizi
authors.affiliation: Department of Thoracic Surgery, "Sant'Andrea" Hospital, "Sapienza" University of Rome, Via di Grottarossa, 1035, 00189 Rome, Italy.
authors.forename: Antonio
authors.initials: A
authors.lastname: D'Andrilli
authors.affiliation: Department of Thoracic Surgery, Policlinico Umberto 1, "Sapienza" University of Rome, Rome, Italy; Lorillard Spencer Cenci Foundation, Rome, Italy.
authors.forename: Federico
authors.initials: F
authors.lastname: Venuta
authors.affiliation: Department of Thoracic Surgery, "Sant'Andrea" Hospital, "Sapienza" University of Rome, Rome, Italy; Lorillard Spencer Cenci Foundation, Rome, Italy.
authors.forename: Erino Angelo
authors.initials: EA
authors.lastname: Rendina
mesh_terms: D002289:Carcinoma, Non-Small-Cell Lung / Q000401:mortality* / Q000601:surgery*; D005260:Female; D006801:Humans; D008175:Lung Neoplasms / Q000401:mortality* / Q000601:surgery*; D008297:Male; D009364:Neoplasm Recurrence, Local / Q000453:epidemiology*; D011013:Pneumonectomy / Q000379:methods*