| 1. | Schuurmans MM, Michaud GC, Diacon AH, et al. Use of an Ultrathin Bronchoscope in the Assessment of Central Airway Obstruction. Chest, 2003, 124: 735-739. | 
				                                                        
				                                                            
				                                                                | 2. | Boiselle PM, Ernst A. Recent Advances in Central Airway Imaging. Chest, 2002, 121: 1651-1660. | 
				                                                        
				                                                            
				                                                                | 3. | Sun M, Ernst A, Boiselle PM. MDCT of the central airways-- Comparison with bronchoscopy in the evaluation of complications of endotracheal and tracheostomy tubes. J thorac imaging, 2007, 22: 136- 142. | 
				                                                        
				                                                            
				                                                                | 4. | Krimsky WS, Sharief UU, Sterman DH. Topical Mitomycin C is an Effective, Adjunct Therapy for the Treatment of Severe, Recurrent Tracheal Stenosis in Adults. J Bronchol, 2006, 13: 141-143. | 
				                                                        
				                                                            
				                                                                | 5. | Bodhey NK, Gupta AK, Neelakandhan KS, et al. Fluoroscopic-guided balloon dilatation and stenting in tracheal stenosis with metallic selfexpandable stents and long-term follow-up results. Australasian Radiology, 2007, 51: 351-357. | 
				                                                        
				                                                            
				                                                                | 6. | Liu CC, Wang KM, Hsu LH. Tracheobronchial Self-expanding Metallic Stents in Patients With Central Airways Obstruction. J Bronchol, 2008, 15: 11-16. | 
				                                                        
				                                                            
				                                                                | 7. | 孫正良, 劉陽云, 馮秀榮, 等. 纖維喉鏡下微波治療喉氣管良性病變. 中國內鏡雜志, 2000, 6: 46. | 
				                                                        
				                                                            
				                                                                | 8. | Yasuo M, Tanabe T, Tsushima K, et al. Endobronchial argon plasma coagulation for the management of post-intubation tracheal stenosis s. Respirology, 2006, 11: 659 -6628 . |