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Figure 1 Percentage increase in brachial arterial diameter from baseline during reactive hyperemia before and after treatment with alpha-tocopherol (open circles) or placebo (closed circles) in patients with high remnant lipoproteins levels (n = 20 patients in each treatment) and in those with low remnants levels (n = 15 patients in each treatment). Significant effect of alpha-tocopherol treatment was observed in patients with high remnant lipoproteins levels as compared with that of placebo but not in those with low remnants levels (by two-way analysis of variance followed by post hoc testing with Scheffé test).