1. University Hospital Schleswig-Holstein, Kiel, Germany
2. Department of Internal Medicine III, University Hospital of the Ludwig-Maximilians-University Munich, Munich, Germany
3. Institute for Medical Information Processing, Biometry, and Epidemiology, Faculty of Medicine, Ludwig-Maximilians-University Munich, Munich, Germany
4. Concord Repatriation General Hospital, University of Sydney, Sydney, NSW, Australia
5. HELIOS Klinikum, Erfurt, Germany
6. University of Ottawa, Ottawa Hospital, Ottawa, ON, Canada
7. University Hospitals Leuven, Leuven, Belgium
8. University Hospital and Masaryk University, Brno, Czech Republic
9. East Kent Hospital, Canterbury, United Kingdom
10. F. Hoffmann-La Roche Ltd, Basel, Switzerland
11. Roche Products Ltd, Welwyn Garden City, United Kingdom
12. Kings College Hospital, London, United Kingdom