1. Department of Urology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
2. Department of Urology, Tohoku University School of Medicine, Miyagi, Japan
3. Division of Urology, Department of Organ-Oriented Medicine, Faculty of Medicine, University of the Ryukyus, Okinawa, Japan
4. Department of Urology, William Beaumont Hospital, Royal Oak, Michigan
5. Department of Molecular Genetics and Biochemistry, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
6. Department of Pharmacology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania