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Figure 1 Line plots showing: (A) the increase in diameters of the pulmonary arterial stenosis and (B) decrease in systolic pressure gradients before and immediately after implantation of self-expanding Wallstents. For patients with a functional right ventricle, no significant change of the right ventricular to the systemic systolic pressure ratio could be documented (C). Figure 1, part C on facing page.
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