For both primary HNSCC (Figure 6D) and NSCLC (Figure 6E), multiple significant correlations between methylation status were found between targets, but methylation status did not cluster in groups defined by the MAGE-A family/H19 expression cluster or by the TKTL1, GRIN1, GPR17 cluster. Here, GPR17 is linked to head and neck squamous cell carcinoma.