1. Department of Neurology University Hospital Regensburg Germany
2. Institute for Transfusion Medicine University Hospital Jena Germany
3. Internal Medicine, Department of Nephrology Diakonissenkrankenhaus Flensburg Germany
4. Department of Cardiology University Hospital Heidelberg Heidelberg Germany
5. Department of Nephrology Caritas Hospital Bad Mergentheim Germany
6. Center for Internal Medicine and Dialysis Kempten Germany
7. Department for Dialysis Nierenzentrum Heidelberg Heidelberg Germany
8. Fresenius Medical Care, Global Medical Office Bad Homburg Germany