7[4]Kollef MH. Epidemiology and risk factors for nosocomial pneumonia[J]. Clin Chest Med, 1999, 20: 653-670.
8[5]Mathews PJ, Mathews LM. Reducing the risks of ventilator-associated infections[J]. Dimens Crit Care Nurs, 2000, 19: 17-21.
9[7]Daren KH, John WD, Shaun MD, et al. Effect of postpyloric feeding on gastroesophageal regurgitation and pulmonary microaspiration: results of a randomized controlled trial[J]. Crit Care Med, 2001, 29(8): 1495-1501.
10[9]Finkelstein R, Rabino G, Kassis I, et al. Device-associated,device-day infection rates in an Israeli adult general intensive care unit[J]. J Hosp Infect, 2000, 44: 200-205.
6Okeefe -McCarthy S, Santiago C, Lan G. Ventilator- associated pneu- moniabundled strategies : An evidence - based practice [ J ]. Worldvi EBN ,2008,5 (4) : 193 - 204.