Surveillance objectives: descriptive epidemiology.
Rhame
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Department of Medicine and Graduate Faculty, School of Public Health, University of Minnesota Hospital and Clinic, Minneapolis 55455.
D002487:Centers for Disease Control and Prevention, U.S.; D003428:Cross Infection / Q000453:epidemiology* / Q000382:microbiology; D004812:Epidemiologic Methods; D006801:Humans; D012307:Risk Factors; D014481:United States