Where used:
| Data Set | National Renal Data Set - Renal Care | references in description SERUM B12 CONCENTRATION | 
| Data Element | SERUM B12 CONCENTRATION | references in description SERUM B12 CONCENTRATION | 
| Data Set | National Renal Data Set - Renal Care | references in description SERUM B12 CONCENTRATION | 
| Data Element | SERUM B12 CONCENTRATION | references in description SERUM B12 CONCENTRATION |