YTHDF2 and head and neck squamous cell carcinoma: Moreover, we have performed the Kaplan–Meier survival analysis among the HNSCC patients according to the increased/decreased mRNA level of YTHDF2 and YTHDC2 genes in cancerous tissues compared to paired-matched histopathologically unchanged tissues, and we have not observed any statistically significant difference in the probability of survival for any of the analyzed genes (Figure S3).