7DEWITT R C, HALLMAN C H. Use of cardiopulmonary bypass for tracheal resection: a case report[J]. Tex Heart Inst J, 2004,31 (2) : 188-190.
8GRILLO H C, DONAHUE D M. Postintubation tracheal stenosis[J]. Chest Surg Clin N Am, 1996,6 (4):725-731.
9CRANDALL M, LAMMERS C, SENDERS C, et al. Initial validation of a numeric zero to ten scale to measure children's state anxiety[J]. Anesth Analg, 2007,105 (5): 1250-1253.