Overall concordance obtained between different experiments undertaken in invasion tumours.

Abbreviations: EXPR: Expression (IHC); METH: Methylation (promoter); DEL: Deletion; OVERALL: overall alterations (Deletion+ Methylation);DYS: Dysplasia; HNSCC: Head and neck squamous cell carcinoma; H: High; M: Moderate; L: Low; ND: Not done; NOR: Normal; TUM: Tumor; B: Basal; P: Parabasal; S: Spinous. P value represents level of significance.