title: Editorial Comment.
authors.affiliation: Department of Urology, David Geffen School of Medicine at UCLA, Los Angeles, California.
authors.forename: Hung-Jui
authors.initials: HJ
authors.lastname: Tan
authors.affiliation: Department of Urology, David Geffen School of Medicine at UCLA, Los Angeles, California.
authors.forename: Mark S
authors.initials: MS
authors.lastname: Litwin