1. Department of Internal Medicine II Kepler University Hospital Linz Austria
2. Department of Internal Medicine III, Division of Nephrology and Dialysis Medical University of Vienna Vienna Austria
3. Attoquant Diagnostics GmbH Vienna Austria
4. 6th Medical Department with Nephrology and Dialysis Wilhelminenhospital Clinic Ottakring Vienna Austria
5. Medical Faculty Sigmund Freud University Vienna Austria
6. Faculty of Medicine, School of Medical Sciences University of New South Wales Sydney Australia