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Cytokine production in supernatant of stimulated PBMCs (10 µg PHA/ml) on day 1 after trauma and of healthy controls. The in vitro productions of IFN-γ (a), IL-10 (b) and IL-4 (c) are expressed in pg/ml. Horizontal bars and boxes show median levels and interquartile range, respectively. Outlier values are indicated as circles. Significant differences (P < 0·05) between the trauma patients versus healthy controls are indicated by an asterisk (anova, Student's t-test).
