Woman and Man
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Extract
To demonstrate a dose response for 1 mg, 5 mg and 20 mg TID oral sildenafil for the treatment of subjects with PAH.
Inclusion criteria
- Pulmonary Arterial Hypertension (PAH)
To demonstrate a dose response for 1 mg, 5 mg and 20 mg TID oral sildenafil for the treatment of subjects with PAH.