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. 2020 Oct 29;11:549159. doi: 10.3389/fneur.2020.549159

Table 3.

Levels of serum vitamin B12 and folic acid.

Control (n = 50) PD (n = 50) P-value
Folic acid (ng/ml) 12.74 ± 5.35 10.11 ± 4.28 0.041
Vitamin B12 (pg/ml) 553.61 ± 208.33 412.07 ± 154.09 0.009

Data are mean ± SD values.