PPARA and neoplasm: For LIHC (Figure 7(b)), however, there were slight correlations between each PPAR family gene and stemness indices and TME except relatively strong associations between PPARA and tumor purity (stromal score: correlation coefficient = −0.17, p < 0.001; immune score: correlation coefficient = −0.29, p < 0.001; and ESTIMATE score: correlation coefficient = −0.26, p < 0.001).