Rate of pandemic (H1N1) influenza vaccination coverage among study population.
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aχ2 test.bFischer's exact test.cThirty-two missing values were excluded from the analysis.dOne hundred and ninety-eight missing values were excluded from the analysis.eExchange rate based on two million Korean won to US $1,830 and four million Korean won to US $3,660.
创建时间：
2015-12-02
