1. Department of Internal Medicine (Nephrology) Leiden University Medical Center Leiden The Netherlands
2. Department of Nephrology Antwerp University Medical Center Edegem Belgium
3. Department of Medical Microbiology and Infection Control, Leiden University Center for Infectious diseases Leiden University Medical Center Leiden The Netherlands
4. Department of Health, Medicine and Caring Sciences Linköping University Linköping Sweden
5. Department of Renal Medicine Aarhus University Hospital Aarhus Denmark
6. Department of Nephrology Akershus University Hospital Lorenskog Norway
7. Transplantation Institute Sahlgrenska University Hospital Goteborg Sweden
8. Department of Nephrology, Rigshospitalet Copenhagen University Hospital Copenhagen Denmark
9. Department of Medical Science, Renal Unit University Hospital Uppsala Sweden