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Wet-to-dry lung weight ratios (W/D) 2 hours (H2), 4 hours (H4), and 12 hours (H12) after Pseudomonas aeruginosa CHA and CHA-D1 intratracheal instillations. The data are means + standard errors (SE) (indicated by error bars). *, statistically different from the CHA-D1 group (P < 0.05).
