%0 Journal Article %T Peripheral Arterial Tonometry to Measure the Effects of Vardenafil on Sympathetic Tone in Men with Lifelong Premature Ejaculation %A Davide Francomano %A Lorenzo M. Donini %A Andrea Lenzi %A Antonio Aversa %J International Journal of Endocrinology %D 2013 %I Hindawi Publishing Corporation %R 10.1155/2013/394934 %U http://dx.doi.org/10.1155/2013/394934