1. Dr. Margarete Fischer-Bosch Institute of Clinical Pharmacology and University of Tuebingen, Auerbachstr.112, 70376 Stuttgart, Germany.
2. German Cancer Consortium and German Cancer Research Center, Heidelberg, Germany.
3. Department of Urology, University Hospital Tuebingen, Hoppe-Seyler-Str. 3, 72076 Tuebingen, Germany.
4. Department of Clinical Pharmacology, University Hospital Tuebingen, Auf der Morgenstelle 8, 72076 Tuebingen, Germany.
5. Department of Pharmacy and Biochemistry, University of Tuebingen, 72076 Tuebingen, Germany.