Figure 2From: Circulating levels of cell adhesion molecule L1 as a prognostic marker in gastrointestinal stromal tumor patients Box-plots show medians (black lines) of soluble L1 concentrations in healthy controls (n = 151) and GIST patients (n = 93) determined by ELISA. Statistical significance was determined by the Mann-Whitney U test (p < 0.001).Back to article page