1. Department of General and Visceral Surgery, Ulm University Hospital, Albert-Einstein-Allee 23, D-89081 Ulm, Germany
2. Institute of Pharmacy, Christian-Albrechts-University of Kiel, Gutenbergstraße 76, D-24116 Kiel, Germany
3. Oncotyrol GmbH, Karl-Kapferer-Straße 5, 6020 Innsbruck, Austria
4. Department for Chemistry, University of Cologne, Zülpicher Str. 47B, D-50674 Cologne, Germany
5. Department of Chemistry and Chemical Biology, TU Dortmund University, Otto-Hahn-Str. 6, D-44227 Dortmund, Germany
6. Institute of Pharmacy, Ernst-Moritz-Arndt-University of Greifswald, Felix-Hausdorff-Str. 1, D-17489 Greifswald, Germany