Phosphodiesterase Type 5 Inhibitors for the Treatment of ...

type 5 inhibitors for the pulmonary circulation. In addition, there is evidence that phosphodi-esterase type 5 inhibitors may directly enhance right ventricular contractility through cyclic guanosine monophosphate–mediated inhibition of phosphodiesterase type 318 (Fig. 1). The phosphodiesterase type 5 inhibitor sildena - ................
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