Antigens, CD 1 Article 1 Biomarkers, Tumor 1 Biopsy 1 CD4 antigen 1 CD8 antigen 1 CDH1 protein, human 1 Cadherins 1 Disease-Free Survival 1 E-cadherin 1 Epithelial-Mesenchymal Transition 1 Female 1 Follow-Up Studies 1 Head and Neck Neoplasms 1 Head and neck cancer 1 Humans 1 Kaplan Meier method 1 Kaplan-Meier Estimate 1 Lymphocytes, Tumor-Infiltrating 1 Male 1 Middle Aged 1 Neoplasm Invasiveness 1 Neoplasm Recurrence, Local 1 Pattern of invasion Prognosis 1 SOX2 1 SOX2 protein, human 1 SOXB1 Transcription Factors 1 Squamous Cell Carcinoma of Head and Neck 1 Survival 1