title: Lung cancer; surgical significance of mediastinal lymph-node metastases.
mesh_terms: D006801:Humans; D008175:Lung Neoplasms / Q000601:surgery*; D008207:Lymphatic Metastasis / Q000175:diagnosis / Q000601:surgery*; D008481:Mediastinoscopy; D008482:Mediastinum / Q000601:surgery