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. 2011 Oct 18;6(10):e26239. doi: 10.1371/journal.pone.0026239

Figure 2. Forest plot of influenza incidence rates in adults working in non-healthcare settings.

Figure 2

Squares and horizontal lines through the squares represent incidence rates with 95% confidence intervals. Abbreviations: IV, inverse variance; CI, confidence interval; PCR, polymerase chain reaction.