Affiliation: | 1.II. Internal Department, Faculty Hospital Kralovske Vinohrady and Third Faculty of Medicine, Charles University, ?robárova 50, 100 34, Prague 10, Czech Republic ;2.Bone Metabolism Unit, Affidea, Prague, Czech Republic ;3.Dialysis Centre, Fresenius Medical Care, Vinohrady, Prague, Czech Republic ;4.National Institute of Public Health, Prague, Czech Republic ;5.I. Internal Department, Faculty Hospital Kralovske Vinohrady and Third Faculty of Medicine, Charles University, Prague, Czech Republic ; |