1. Institute of Pathology, University Medicine Rostock, Strempelstr. 14, 18055 Rostock, Germany
2. Institute of Pathology, University Hospital of Jena, Ziegelmühlenweg 1, 07743 Jena, Germany
3. Institute of Biostatistics, University of Rostock, Ernst-Heydemann-Str. 8, 18057 Rostock, Germany
4. Clinical Cancer Registry, University Medicine Rostock, Südring 75, 18059 Rostock, Germany
5. Institute of Pathology, Charité University Medicine, Chariteplatz 1, 10177 Berlin Germany
6. Clinic of Urology, HELIOS Hanseklinikum Stralsund, Große Parower Straße 47–53, 18435 Stralsund, Germany
7. Clinic of Urology, University Medicine Rostock, Ernst-Heydemann-Str. 8, 18057 Rostock, Germany