Letter to the Editor referring to the retracted publication entitled "Straticyte demonstrates prognostic value over oral epithelial dysplasia grade for oral potentially malignant lesion assessment" by Hwang et al. (May 2018) - Hwang, Jason T.K.; Gu, Ying R.; Dickson, Benjamin J.; Shen, Mi; Ralhan, Ranju; Walfish, Paul G.; Mock, David; Pritzker, Kenneth P.H.