Head-and-neck squamous cell carcinoma risk in smokers: no association detected between phenotype and AHR, CYP1A1, CYP1A2, or CYP1B1 genotype

Table 10 Detailed studies of chromosomal frequencies of CYP1B1 haplotype ACTTGATC in haploblock 2

^*Not significantly different (P = 0.249) by Fisher’s exact test, comparing HS with HR

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