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Figure 3 Survival in Patients With Idiopathic PAH After Treatment With Epoprostenol
Among patients who were FC III or IV prior to treatment with epoprostenol, survival among patients improving to FC I or II (solid line) was substantially better than patients who were FC III or IV (dashed line) after treatment; p < 0.001. NYHA = New York Heart Association; other abbreviations as in Figure 2. Reproduced, with permission, from Sitbon et al. (63).
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