In the KEGG pathway classification, the genes in modules are significantly enriched in focal adhesion, ECM-receptor interaction, PI3K-Akt signaling pathway, regulation of actin cytoskeleton, mineral absorption, small cell lung cancer, arrhythmogenic right ventricular cardiomyopathy (ARVC), proteoglycans in cancer, hypertrophic cardiomyopathy (HCM), dilated cardiomyopathy. Here, PIK3CA is linked to small cell lung carcinoma.