PDGFA and head and neck squamous cell carcinoma: Another study by Li defined seven‐gene NET‐related signature, including ITGA5, NIFK, NUTF2, PDGFα, TNFRSF12, LINC00460 and LINC02454, for head and neck squamous cell carcinoma through the TCGA and ICGC cohorts (p‐value < 0.05) [33].