Where used:
| Data Set | National Renal Data Set - Dialysis | references in description SERUM UREA CONCENTRATION (PRE-DIALYSIS) | 
| Data Element | SERUM UREA CONCENTRATION (PRE-DIALYSIS) | references in description SERUM UREA CONCENTRATION (PRE-DIALYSIS) | 
| Data Set | National Renal Data Set - Dialysis | references in description SERUM UREA CONCENTRATION (PRE-DIALYSIS) | 
| Data Element | SERUM UREA CONCENTRATION (PRE-DIALYSIS) | references in description SERUM UREA CONCENTRATION (PRE-DIALYSIS) |