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Changes in IL-6 mRNA expression in the corneas of mice after challenge with three strains of P. aeruginosa, 6294, 6206, and Paer1, over time. The amount of IL-6 mRNA was semiquantitated by image analysis and is expressed as image analysis units per section. An asterisk indicates that the value was significantly different from control and 0-h values. Data represent mean image analysis units for three eyes per time point, and error bars represent standard errors of the mean.
