Table 1 Grouping standard
Group | Case group | Control group |
|---|---|---|
Standard | Serum VB12 level < 148 pmol/L | |
VB12 deficiency: Serum VB12 level < 148 pmol/L | Non-VB12 deficiency: Serum VB12 level ≥ 148 pmol/L |
Group | Case group | Control group |
|---|---|---|
Standard | Serum VB12 level < 148 pmol/L | |
VB12 deficiency: Serum VB12 level < 148 pmol/L | Non-VB12 deficiency: Serum VB12 level ≥ 148 pmol/L |