1. Department of Clinical Chemistry, Helsinki University Central Hospital, Helsinki University, Helsinki, Finland
2. Department of Urology, Malmö University Hospital, Malmö, Sweden
3. Department of Urology, Göteborg University, Göteborg, Sweden
4. Department of Pathology, Memorial Sloan–Kettering Cancer Center, New York, USA
5. Department of Urology, Erasmus University, Rotterdam, The Netherlands
6. Academic Urology Unit, Royal Hallamshire Hospital, Sheffield, UK
7. Service d'Urologie, Hôpital Bichat, Paris, France
8. Department of Urology, Karolinska University Hospital, Stockholm, Sweden