1. Dept. of Medicine 1, University of Erlangen
2. Dept. of Internal Medicine, Krankenhaus Reutlingen
3. Dept. of Internal Medicine, Helfenstein-Klinik Geislingen
4. Research Unit, Bracco Imaging, Konstanz
5. Dept. of Internal Medicine, Caritas-Krankenhaus Bad Mergentheim
6. Dept. Internal Medicine, Kreiskrankenhaus Sigmaringen