1 USC Institute of Urology and Catherine and Joseph Aresty Department of Urology, Keck School of Medicine, University of Southern California, Los Angeles, California.
2 Departments of Urology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan.
3 University of Verona, Azienda Ospedaliera Universitaria Integrata Verona, Verona, Italy.
4 Prostate Institute of America, Community Memorial Hospital, Ventura, California.