1. WMC Health Good Samaritan Hospital, Bon Secours Urology, Suffern, New York, USA.
2. Chesapeake Urology, Baltimore and Annapolis, Maryland, USA.
3. Urology San Antonio Research, San Antonio, Texas, USA.
4. Minnesota Urology, Woodbury, Minnesota, USA.
5. University of Minnesota, Departments of Urology and Radiology, Minneapolis, Minnesota, USA.