Virtual Ecology Lab: The Effects of Removing a Predator

The population at risk is well-defined and consists of students living on campus. The primary exposure of interest is eating at the main cafeteria. The outcome is relatively rare (i.e., only 75 cases or approximately 3% of the 2,400 students living on campus are known to be ill) and the suspected exposure (the main cafeteria) is common (i.e ... ................
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