아무도 논의하지 않는 비아그라의 현명한 비법
At one oral doses of one hundred mg and 200 mg, transient dose-similar impairment of shade discrimination was detected using the Farnsworth-Munsell a hundred-hue check, with peak consequences close to the time of peak plasma amounts. This finding is according to the inhibition of PDE6, and that is associated with phototransduction in the retina.VIA