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Presents a forest plot that highlights the effects of vitamin D supplementation. The plot is divided into four sections for ease of interpretation: (A) shows the effect on the skin lesion area, (B) depicts changes in TNF levels, (C) assesses alterations in IL-6 levels, and (D) evaluates the impact on hs-CRP. The horizontal lines extending from the squares represent the 95% confidence intervals, while the diamond symbols indicate the overall effect sizes [2,3,15,35,36,37,38].
