Gastroenteritis at a University in Texas

(0.73-275) Ate at deli bar - lunch on March 10 0 8 1 19 8.0 (1.1-354) Ate at deli bar - dinner on March 10 1 1 1 25 1.0 (0.01-79) . Question 17B: What elements of this case-control study might affect the validity of the measured association? ................
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