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Figure 1 Kaplan-Meier survival curve beyond the age of 18. Solid line = patients with moderate or severe left ventricular (LV) systolic dysfunction; dotted line = patients with normal or mild reduction in LV systolic function. The difference between the two groups reached significance (p < 0.01). n = number of patients remaining in follow-up at the corresponding time after the tetralogy of Fallot repair.
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