Evaluation of the phosphodiesterase inhibitor type-9 (PDE9) bay 73-6691 on the rea...
Pharmacological characterization of the in vitro and in vivo effects of the phosph...
Comparative study on the effects of sildenafil and tadalafil in advanced pulmonary...
In vitro and in vivo evaluation of the therapeutic effects of the chronic use of p...
Pharmacological characterization of Sildenafil and BAY 41-2272 in rat vas deferens...
Power Doppler ultrasonography of blood flow and electroretinography and histomorph...