Mediastinoscopy.
D000770:Anesthesia, Endotracheal; D001706:Biopsy; D001999:Bronchoscopy; D004724:Endoscopy / Q000009:adverse effects; D006258:Head and Neck Neoplasms / Q000175:diagnosis; D006801:Humans; D008175:Lung Neoplasms / Q000175:diagnosis*; D008223:Lymphoma / Q000175:diagnosis*; D008477:Mediastinal Diseases / Q000175:diagnosis*; D008722:Methods; D012507:Sarcoidosis / Q000175:diagnosis; D014054:Tomography; D014376:Tuberculosis / Q000175:diagnosis