Determination of the effects of sildenafil citrate and epoprostenol when used in combination
in patients with pulmonary arterial hypertension
Minimum age: 16 Years.
Maximum age: N/A.
Gender(s): Both.
Pfizer Investigational Site, Leuven 3000, Belgium
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Pfizer Investigational Site, Milwaukee, Wisconsin 53226, United States
Pfizer Investigational Site, Milwaukee, Wisconsin 53277, United States