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Scatterplot of ejection fraction and cardiac index. Groups were characterized by low (EFL) or preserved EF (EFP) using a cutoff of ≤45% for low EF and low (CIL) or normal (CIN) using a cutoff of ≤2.2 L/min/m2 for low CI. Mean and standard deviation is shown for each group. Abbreviations: CI, cardiac index; EF, ejection fraction.
