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Values of (a) superoxide anion radical (O2−) and (b) activity of superoxide dismutase (SOD) in different groups of psoriatic patients. A p-value of less than 0.05 (p < 0.05) was considered statistically significant. Values are displayed in the form of violin plots to show the distribution of values within groups. *—p < 0.05; **—p < 0.01.
