DDR2 and head and neck squamous cell carcinoma: A different nonsense mutation (p.R709X) and missense mutations(p.I474M; p.I724M) have been previously identified exclusively in HNSCC recurrences(Hedberg et al., 2015).DDR2 and FGFR2, which was identified as havinga potential missense driver mutation in one sample in the current study, are bothgenes that code for receptor tyrosine kinases and are potentially targetable fortherapeutics.