1. Institute of Pathology, University of Göttingen, Göttingen, Germany
2. Department of Endocrinology, University Medical Center Göttingen, Göttingen, Germany
3. Department of Human Genetics, University of Göttingen, Göttingen, Germany
4. Department of Urology, University of Göttingen, Göttingen, Germany
5. Department of Oncology, University Medical Center Hamburg-Eppendorf, University of Hamburg, Hamburg, Germany
6. Tumour and Breast Center ZeTuP, St. Gallen, Switzerland