We subsequently validated the expression pattern of Plac1 in an in‐house tumor tissue microarray (TMA) cohort, which included normal oral mucosa and HNSCC tissues from different stages, as reported in our previous publication (Figure S2A, Supporting Information).[13] The Plac1 expression level was found to be associated with advanced tumor status according to multiple criteria. The gene discussed is PLAC1; the disease is head and neck squamous cell carcinoma.