1. Department of Nephrology, Limassol General Hospital, Limassol, Cyprus; University of Nicosia Medical School , Nicosia , Cyprus
2. Department of Health, Medicine and Caring Sciences, Linköping University , Linköping , Sweden
3. Department of Renal Medicine, Karolinska University Hospital and CLINTEC Karolinska Institutet , Stockholm , Sweden
4. Department of Nephrology, Hospital Unversitatio La Paz, Madrid, Spain , Spain
5. ; Instituto de Investigacion la Paz, IDIPaZ , Spain
6. Division of Nephrology, RWTH Aachen University Hospital , Aachen , Germany
7. Department of Nephrology and Renal Transplantation, Patras University Hospital , Patras , Greece
8. Cork University Hospital, University College Cork , Cork , Ireland
9. Renal Division, Department of Medicine IV, Ludwig-Maximilians-University Hospital Munich, Ludwig-Maximilians-University Munich , Germany
10. Glasgow Renal and Transplant Unit, Queen Elizabeth University Hospital , Glasgow , UK
11. Division of Nephrology, Department of Internal Medicine, Necmettin Erbakan University , Konya , Turkey
12. Department of Internal Medicine IV, Nephrology and Hypertension, Medical University Innsbruck , Innsbruck , Austria