9Fabbri L M, Hurd S S, GOLD Scientific Committee. Global strategy for the diagnosis, management and prevention of COPD: 2003 update[J]. Eur Respir J,2003,22(1) : 1-2.
10[1]Whelan J,Simpson S Q,Levy H.Unplanned extubation.Prediction of successful termination of mechanical ventilatory support[J].Chest,1994,105:1808.
