Fig. 9.

Benchmarking clinical data. In a the box of CD133 and in b CK20 positivity distribution applying Kolmogorov–Smirnov test. Correspondent arithmetic means for each variable was used as cut-off value to stratify the patients according to low (a box) and high (d box) expression for CD133 and CK20 antigens, respectively. Moreover, arithmetic means for each variable was used as cut-off value to distinguish two subgroups of patients. In function of the low and high expression for each antigen the relative overall survival (c) and disease free (d) were calculated