1. From the Department of Urology, Sahlgrenska University Hospital, Göteborg, Department of Urology, Kärnsjukhuset, Skövde and Department of Genetics and Pathology, Uppsala University, Uppsala, Sweden, and Department of Pathology, University Hospital, Tromsö, Norway, and Department of Pathology and Microbiology, and Eppley Institute of Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, Nebraska