1. Institute of Pharmacology and Toxicology University of Ulm Medical Center Ulm Germany
2. Institute of Organic Chemistry III Ulm University Ulm Germany
3. Department of Internal Medicine I University of Ulm Medical Center Ulm Germany
4. Institute of Experimental and Clinical Pharmacology and Toxicology University of Freiburg Freiburg Germany
5. Department of Life Sciences and Chemistry Jacobs University Bremen Bremen Germany
6. Department of Anaerobic Bacteria Pasteur Institute Paris France