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Decreased VIP serum levels are associated with clinical manifestations of enthesitis (a) and psoriasis (b). The figure illustrates the association between VIP serum levels and these clinical manifestations shown at Table 2 where statistical significance is reported. Data are represented as the interquartile range (p75 upper edge of the box, p25 lower edge, p50 midline), as well as the p90 (line above the box) and p10 (line below the box) of serum VIP levels. Dots represent outliers
