1. Nuffield Department of Surgical Sciences; University of Oxford; Oxford UK
2. Department of Urology; Helsingborg Hospital; Lund University; Lund and Helsingborg Sweden
3. Regional Cancer Centre; Uppsala/Örebro; Uppsala University Hospital; Uppsala Sweden
4. Department of Urology; New York University and Manhattan Veterans Affairs Medical Center; New York NY USA
5. Sunnybrook Health Sciences Centre; University of Toronto; Toronto ON Canada
6. Department of Pathology; Karolinska University Hospital; Stockholm Sweden
7. Department of Surgical and Perioperative Sciences; Umeå University; Umeå Sweden