Figure 1: Box-blot figures for spontaneous (a) and PHA-stimulated (b) proliferation of PBMC during a pretreatment (run-in) period and during 2 weeks of treatment with the probiotic juice with GOS. 𝑛 = 1 8 . Wilcoxon signed ranks test. The boundary of the box closest to zero indicates the 25th percentile, a line within the box marks the median, and the boundary of the box farthest from zero indicates the 75th percentile. Whiskers above and below the box indicate the 90th and 10th percentiles. The outliers are given as circles.