8Esteban A, Frutos-Vivar F, Ferguson ND, et al. Noninvasive posi- tive-pressure ventilation for respiratory failure after extubation [J].N Engl J Med, 2004, 350(24): 2452-2460.
9Festic E, Gajic O, Limper AH, et al. Acute respiratory failure due to pneumocystis pneumonia in patients without human immunodefi- ciency virus infection: outcome and associated features [J]. Chest, 2005, 128(2): 573-579.
10Antonelli M, Confi G, Moto ML, et al. Predictors of failure of non- invasive positive pmsure ventilation in patients with acute hypox- emie respiratory failure: a multi-center atudy [J]. Intensive Care Meal, 2001, 27: 1718-1728.