The relative expression of CXCL6 (A) and CXCR16 (B) in duodenal biopsies of healthy control children (HC, n = 8), celiac disease children (CD, n = 9) and treated celiac adults (T-CD, n = 6). Boxplot shows 25th to 75th percentile with a line at median and the whisker represents interquartile range. Samples, which are outside 1.5 times the interquartile range above the upper quartile (3rd quartile) and below the lower quartile (1st quartile) are denoted by circles. A) The difference in CXCR6 expression between HC and CD or T-CD is statistically significant (*p < 0.05). B) CXCL16 expression shows no significant differences between the groups.