1. Institute of Medical Biochemistry and Laboratory Diagnostics, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
2. Department of Nephrology, University Hospital Hradec Králové and Charles University, Faculty of Medicine in Hradec Králové, Hradec Králové, Czech Republic
3. Department of Nephrology, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic