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Figure 1 Left ventricular ejection fraction (LVEF) after transmyocardial revascularization with CO2 laser compared with medical treatment. Left ventricular ejection fraction in 63 of 75 patients (84%) with complete multiple-gated acquisition investigations during follow-up; LVEF values are given as mean ± SD. No statistically significant difference between the groups during follow-up. Black bar = TMR (n = 33); lined bar = medical treatment (n = 30).
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