6Fink JB, Krause SA, Barrett L. Extending ventilator circuit change interral beyond 2 days reduces the likelihood of ventilator-associated pneumonia. Chest, 2000,113(4): 405-411.
7Martins DE, Araujo MT, Vieira SB,et el. Heated humidification or face mask to prevent upper airway dryness during continuous positive airway pressure therapy. Chest , 2000,117 : 142.
8Cereda M, Villa F, Colombo E, et al. Closed system endotracheal auctioning maintains tuns volume during volume-controlled mechanical ventilation. Intensive Care Med, 2001,27 (4) : 648-654.
9Reed AP. Current concepts in airway management for cardiopulmonary resuscitation. Mayo Clin Proc, 1995,70(12):1172-1184.
10Ooldenbery D, Ari EG, Oolz A, et al. Tracheotomy complications, A retrospective study of 1130 cases, Otolaryngol Head Neck Surg, 2000, 123(4) :495-500.