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Relation between day-1 and day-14 Crs (n = 108). a shows the regression line (continuous) between day-14 and day-1 Crs compared to the y = x (dotted line). b shows the same data according to three day-28 outcomes: patients extubated (empty circles) patients still on mechanical ventilation (grey circles) and patients who died (black circles) and their respective regression lines
