1. In-patient utilization of short-stay hospitals by diagnosis. United States 1982, annual summary. National Center for Health Statistics, United States Department of Health and Human Services, data from the National Health Survey, series no. 72 (Department of Human Services publication no. PHS-83–1733). Washington, DC: United States Government Priting Office, 1983.
2. National Center for Health Statistics: Health, United States 1983 (DHHS) Publication no. PHS-84–1232). Wash ington: U.S. Government Printing Office, December, 1983.
3. Lode H. Initial therapy of pneumonia: clinical, radiogra phic and laboratory data important for the choice. Am J Med 1986; 80 (suppl. 5C): 70–78.
4. Donowits G R, Mandell G L. Empiric therapy of pneumonia. Rev Infect Dis 1983; 5: 540–551.
5. Sullivan Jr R J, Dowdle W R, Marine W M, Hierholzen J C. Adult pneumonia in a general hospital-etiology and risk factors. Arch Intern Med 1972; 129: 935–939.