1. Department of Urology; Mayo Clinic; Rochester MN USA
2. Division of Urology; Department of Surgery; University of Toronto; Toronto Ontario Canada
3. Mayo Clinic Libraries; Mayo Clinic; Rochester MN USA
4. Case Western Reserve University School of Medicine; Cleveland OH USA
5. Department of Urology; University of Texas MD Anderson Cancer Center; Houston TX USA
6. Unit of Urology; San Raffaele Scientific Institute; University Vita-Salute; Milan Italy
7. Division of Urology; Rhode Island Hospital and The Miriam Hospital; Providence RI USA
8. Warren Alpert Medical School of Brown University; Providence RI USA