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Cumulative net fluid balance by study day. Cumulative net fluid balance over the first 7 ICU days. Dots represent group means by day and error bars represent 95% CIs for the group means. Statistical comparisons between the groups were performed using the Mann-Whitney U test. ARDS = acute respiratory distress syndrome, CR-ARDS = clinician-recognized ARDS, UR-ARDS = unrecognized ARDS.
