title: Reply.
authors.affiliation: Philip R. Lee Institute for Health Policy Studies, Department of Urology, UCSF School of Medicine, San Francisco, CA.
authors.forename: Lindsay A
authors.initials: LA
authors.lastname: Hampson
authors.affiliation: Department of Urology, UCSF School of Medicine, San Francisco, CA.
authors.forename: Benjamin N
authors.initials: BN
authors.lastname: Breyer