For examples, the copy number amplification and expression level upregulation of FYTTD1 and CTTN would remarkably cause a poor prognosis in tumor patients of ESCA and head and neck squamous cell carcinoma (HNSC) respectively (Fig. 5b), while the copy number deletion and expression level downregulation of MTAP was significantly associated with a worse prognosis (Fig. 5b). This evidence concerns the gene MTAP and neoplasm.