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. 2020 Aug 7;12(8):2359. doi: 10.3390/nu12082359

Figure 2.

Figure 2

Changes in vitamin levels in the 6-month trial (n = 26). (A) Serum level of vitamin B6; (B) serum level of folate; (C) serum level of vitamin D3; (D) serum level of vitamin E; (E) serum level of coenzyme Q10. Data are presented as mean ± 95% confidence interval (above). Y-axis represents vitamin serum levels, and x-axis displays time (by month). Significance was calculated using generalized estimating equation analysis, comparing baseline and after vitamin supplementations. * p < 0.05, ** p < 0.01, *** p < 0.001.