1THOMPSOND A, MAKARYM A, DORMAN T, et al.Clinical and eco-nomic outcomes of hospital acquired pneumonia in intra-abdominal surgery patients [J].AnnSm'g,2006,243 (4): 547-552.
3DILWORTH JP.Postoperative chest infection after upper ab- dominal surgery: an importance for smokers[J].Respir Med, 1992,86(3):205 -210.
4AHSAN M,AROZULL AH MPH,DALEY J,et al. Multifacto- rial risk index for predicting postoperative respiratory failurein men after major noncardiac surgery[J].Annals of Surgery, 2000,232(2):242-253.
