![Sildenafil versus Endothelin Receptor Antagonist for Pulmonary Hypertension (SERAPH) Study]()
Sildenafil versus Endothelin Receptor Antagonist for Pulmonary Hypertension (SERAPH) StudyWilkins, Martin R.; Paul, Gideon A.; Strange, Julian W.; Tunariu, Nina; Gin-Sing, Wendy; Banya, Winston A.; Westwood, Mark A.; Stefanidis, Alexander; Ng, Leong L.; Pennell, Dudley J.; Mohiaddin, Raad H.; Nihoyannopoulos, Petros; Gibbs, J. Simon R. · American Journal of Respiratory and Critical Care Medicine · 2005