An experiment in hospital epidemiology.
D003428:Cross Infection / Q000453:epidemiology; D004501:Education, Medical; D004813:Epidemiology; D006748:Hospital Departments / Q000706:statistics & numerical data*; D006784:Hospitals, Teaching; D006801:Humans; D007396:Internship and Residency; D007557:Israel; D011315:Preventive Medicine / Q000193:education; D012106:Research; D013663:Teaching; D000078329:Workforce