Does postoperative irradiation improve survival in lung cancer?
D006801:Humans; D008175:Lung Neoplasms / Q000601:surgery*; D008207:Lymphatic Metastasis / Q000532:radiotherapy*; D009026:Mortality; D009362:Neoplasm Metastasis / Q000532:radiotherapy*; D011013:Pneumonectomy; D013902:Radiography, Thoracic; D011882:Radiotherapy, High-Energy