Figure 5.

Box-plot of C4d positive tumor area fractions (C4d EXT) in grade I-IV astrocytomas. The C4d EXT groups: 1 = no positivity, 2 = 2% or less positive tissue, 3 = more than 2% positive tissue. (p = 0.041, Mann–Whitney U-test.).

Mäkelä et al. BMC Cancer 2012 12:565   doi:10.1186/1471-2407-12-565
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