GSTP1 and head and neck carcinoma: Only cofilin-1 [32]–[34] and glutathione S-transferase P (or GSTP1-1) [33], [35] have been previously described in OSCC; otherwise, few studies have been done on SERPINH1, EEF1D and RPL8 expression in head and neck carcinomas or other neoplasms.