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Figure 4 Graph showing the percentage of patients with tetralogy of Fallot undergoing complete surgical repair based on echocardiography alone from 1983 through 1995. Throughout the study period, a higher percentage of patients with tetralogy of Fallot and pulmonary stenosis (solid line) underwent surgery based on echocardiography alone compared with patients with tetralogy of Fallot and pulmonary atresia (dashed line). PA = pulmonary atresia; PS = pulmonary stenosis; TOF = tetralogy of Fallot.
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