Figure 1. Box and whisker plots showing serum levels of CA19-9, LRG1 and IL6 in samples from PSC (n = 62; white boxes) and CCA patients (n = 66; grey boxes).

ALP, GGT, TBIL and CRP were also measured in these samples. Whisker limits represent the 5th and 95th percentiles, the box limits represent the interquartile range, the horizontal line the median, and the ‘+’ the mean. P values (Mann-Whitney U test) are shown.