W. Monnig

Sildenafil citrate improves erectile function and urinary symptoms in men with erectile dysfunction and lower urinary tract symptoms associated with benign prostatic hyperplasia: a randomized, double-blind trial.

K. McVary, J. Camps, Jay M. Young, 2007, The Journal of urology.

920: Sildenafil Improves Erectile Function and Concomitant Lower Urinary Tract Symptoms in Men

K. McVary, S. Rosenberg, M. Swierzewski, 2006 .