
Keywords: Acetaldehyde; Aldehyde Dehydrogenase 2; Genetic Polymorphism; Field Cancerization; Squamous Differentiation; ADH1B; alcohol dehydrogenase 1B; ALDH2; aldehyde dehydrogenase 2; CRT; chemoradiotherapy; CT; computed tomography; CYP; cytochrome P450; DCF; doce