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. 2015 Oct 9;19:363. doi: 10.1186/s13054-015-1073-8

Fig. 3.

Fig. 3

Box plots of left ventricular ejection fraction measured before Impella 5.0 implantation and after Impella removal during ICU stay. The line in the box indicates the median value of the data and the cross indicates the mean value. Paired Wilcoxon test for comparison. ICU intensive care unit