highly significantp < 0,005
However, among SOX11 positive cases we found a highly significant correlation between SOX4 and SOX11 (Spearman's correlation coefficient: 0,56; p < 0,005), SOX12 and SOX11 (Spearman's correlation coefficient: 0,63; p < 0,005) and moderate correlation between SOX12 and SOX4 mRNA (Spearman's correlation coefficient: 0,40; p < 0,005).