3Fagon J 1. Chastre, Domart Y, et al. Nosocomial Pneumonia in patients receving continuous mechanical ventilation. Am Rev Respir Dis, 1989,139: 877.
4Seidcnfeld J J. Pohl DF. Bell Rc,et al,Incidence site and outcome of infection in patients with the adult respiratory distress syndrome. Am Rev Respir Dis, 1986. 134:12
5Torres A. Aznar R, Gatell JM, et al, Incidence risk and prognosis Factors of nosocomial pneumonia in mechanically ventilated patient. Am Rev Respir Dis, 1990,142:523.
