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Cytotoxic activity in the infected cornea by PAK and PAO1 strains of Pseudomonas aeruginosa. Relative cytotoxic effect (detected by LDH release) on mouse corneal epithelium at 48 hr post-infection with PAK and PAO1 strains of P. aeruginosa. Bars represent means from duplicates of each sample, and error bars indicate the SD. (one asterisk, P<0.05; two asterisks, P<0.01 by comparison with “PAK+PAO1”)
