CCHCR1 and oral mucositis: - SNP rs1265081 in CCHCR1 gene (allele A vs. C: OR = 1.41, 95% CIs = 1.08–1.86, p = 0.012) and rs3135001 (allele T vs. allele C: OR = 0.53, 95% CIs = 0.35–0.79, p = 0.002) were significantly associated with the occurrence of grade 3–4 oral mucositis.