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2. Mediastinal lymph node extension in primary bronchial cancer: correlation of x-ray computed tomography, magnetic resonance imaging and mediastinoscopy: apropos of 50 cases;Coulomb;J Radiol,1987
3. The value of mediastinoscopy in preoperative staging of bronchogenic carcinoma;Van Schil;J Thorac Cardiovasc Surg,1989
4. Cost-effectiveness of CT scanning compared with mediastinoscopy in the preoperative staging of lung cancer;Eddy;Can Assoc Radiol J,1989
5. Cost-benefit analysis of thoracic computerized tomography as exemplified in the N-staging of bronchial carcinoma;Keller;Schweiz Med Wochenschr,1988