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Fig. 3 | SpringerPlus

Fig. 3

From: Determination of plasma and leukocyte vitamin C concentrations in a randomized, double-blind, placebo-controlled trial with Ester-C®

Fig. 3

Mean vitamin C concentration and percent changes from baseline in plasma over a 24-h period: a concentration change, Ester-C® versus placebo; b percent change, Ester-C® versus placebo; c concentration change, Ester-C® versus ascorbic acid; d percent change, Ester-C® versus ascorbic acid. Data are mean ± standard error. Significant differences are indicated: *P < 0.001, Ester-C® versus placebo; **P = 0.007, Ester-C® versus placebo; †P < 0.001, within-group change from baseline for both Ester-C® and ascorbic acid

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