1Bradley D Freeman, Karen Isabella, J Perren Cobb, et al . A prospective,randomized study comparing percutaneous with surgical tracheostomy in critically ill patients[J]. Crit Care Med,2001,29(5) :926 - 930.
2DP Dob, HA Mclure, N Soni. Failed intubation and emergency percutaneous tracheostomy[J]. Anaesthesia, 1998,53: 72-74.
3PV Van Heerden, SAR Webb, BM Power, et al. Percutaneous dilational tracheostomy- a clinical study evaluating two systems[J]. Anaesth Intens Care, 1996, 24: 56-59.
4Jose M Anon, Vicente Gomez, M Paz Escuela, et al. Percutaneous tracheostomy: comparison of Ciaglia and Griggs techniques (peerreviewed research)[J]. Crit Care, 2000, 4: 124- 128.