1. Jacobs, R. F. Nosocomial pneumonia. In:Donowitz, L. G. (ed.): Hospital acquired infection in the pediatric patient. Williams and Wilkins, Baltimore, Maryland 1988, pp. 17–32.
2. Graybill, J. R., Marshall, L. W., Charache, P., Wallace, C. K., Melvin, V. B. Nosocomial pneumonia: A continuing major problem. Am. Rev. Dis. 108 (1973) 1130–1140.
3. Johanson, W. G., Pierce, A. K., Sanford, J. P. Changing pharyngeal bacterial flora of hospitalized patients: Emergence of gram-negative bacilli. N. Engl. J. Med. 281 (1969) 1137–1170.
4. Bartlett, J. G., O'Keefe, P., Tally, F. P., Louie, T. J., Gorbach, S. L. Bacteriology of hospital-acquired pneumonia. Arch. Intern. Med. 146 (1986) 868–871.
5. Centers for Disease Control National nosocomial infections study report, Annual summary, 1983. Atlanta, Centers for Disease Control. MMWR 33 (1985) 955–2155.