[1] Loyola Univ Med Ctr, Ctr Male Hlth, Stritch Sch Med, Dept Urol, 2160 S,First Ave, Maywood, IL 60153 USA
[2] Weill Cornell Med, Dept Obstet & Gynecol, Dept Urol, New York, NY USA
[3] Miller Sci, Dept Biostat, Johnson City, TN USA
[4] Boston Sci, Hlth Econ & Market Access, Marlborough, MA USA
[5] Univ Hlth Network, Div Urol, Toronto, ON, Canada