title: [Mediastinoscopic verification of the stage of lung cancer and its effect on the survival].
mesh_terms: D006801:Humans; D008175:Lung Neoplasms / Q000401:mortality*; D008207:Lymphatic Metastasis; D008297:Male; D008479:Mediastinal Neoplasms / Q000175:diagnosis* / Q000401:mortality / Q000556:secondary; D008481:Mediastinoscopy; D009367:Neoplasm Staging
vernacular_title: Mediastinoskopicheskaia verifikatsiia stadii raka legkogo v svete otdalennykh rezul'tatov.