Tumor size and nodal metastases (T‐ and N‐status), resection margin status (R‐status), perineural invasion (Pn‐status), lymphovascular invasion (L‐status), grading, extracapsular extension (ECE), HPV status, EpCAM, and Slug levels, both following visual and digital quantification, were implemented in these analyses (univariable CoxPH models in Fig. S2). The gene discussed is EPCAM; the disease is neoplasm.