| The results indicate that initiation of therapy with sildenafil in patients with functional class (FC) II and III PAH would result in probable cost savings compared with riociguat, bosentan, ambrisentan 5 mg, ambrisentan 10 mg and tadalafil. |
| The study findings do not support differential funding of PAH therapies for patients with FC II versus FC III disease based on current evidence. |
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