Influenza like illness (ILI) prevalence ratios by select occupation and characteristics, Washington State employed population, BRFSS September 2009 to August 2010.
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Note. CI = confidence interval; PR = prevalence ratio; n.e.c. = not elsewhere classified; bold font indicates significance at paThe original n for the vaccination status question was 6,139.
创建时间：
2015-12-02
