5Stamm Am. Ventilator-associated pneumonia and frequency of circuit changes [J]. Am J Infect Control, 1998, 26 (1): 71-73.
6Guerra J G. Imipenem in/clilasttin vs, gentamicin/clindamycin for the treatment of moderate to sevre infenctions in hospitalized patients. Rev Infect Dis, 1996,7 ( 13 ) : S463-C470
7Sutherland GR, Lesiuk H, Hazendonk P, el al. Magnetic resonance imaging and 31 p Megnetic resonance spectroscopy study of the effect of temperature on ischemia brain in ury, J Can Sci Neurol, 1998,19 ( 3 ) : 317-325