1. Department of Medicine, Koc University School of Medicine , Istanbul , Turkey
2. Department of Nephrology, Vall d’Hebron University Hospital, Universitat Autònoma de Barcelona , Spain
3. Nephrology and Kidney Transplant Research Group, Vall d'Hebron Research Institute (VHIR) , Barcelona , Spain
4. Department of Medicine, Universidad Autonoma de Madrid and IIS-Fundacion Jimenez Diaz , Madrid , Spain
5. Nephrology Clinic, Dialysis and Renal Transplant Center, ‘C.I. PARHON’ University Hospital, and ‘Grigore T. Popa’ University of Medicine , Iasi , Romania
6. Department of Medicine, Division of Nephrology, Koc University School of Medicine , Istanbul , Turkey