ERCC1 and head and neck squamous cell carcinoma: Since the T allele of ERCC1 c.354C>T [52], A of MLH1 c.93G>A [53] and G of MSH3 c.3133A>G [55] were associated with lower DNA repair capacity, the association of these genotypes with CDDP‐induced nephrotoxicity in HNSCC patients is biologically plausible.