Expression of von Hippel-Lindau tumor suppressor and tumor-associated carbonic anhydrases IX and XII in normal and neoplastic colorectal mucosa

Figure 2 Associations of the proteins with colorectal tumors based on semi-quantitative immunohistochemical assessment and analysis of the data using the Mann-Whitney rank test. Each box indicates the range of staining indices from the 25% to the 75% quantile, the horizontal line denotes the median and the whiskers above and below the box show the highest and lowest index. Values of significance are given above the graphs.