1Castillo D,Barrot E.Noninvasive positive pressure ventilation for acute respiratory failure in chronic obstructive pulmonary disease in a general respiratory ward[J].Med Clin(Barc),2003,120(7):647-651.
2Mehta S,Jay GD,Woolard RH,et al.Randomised prospective trial of bi-level versus continuous positive airway pressure in acute pulmonary edema[J].Crit Care Med,1997,25(3):620-628.
