Figure 1From: Investigation of HOXA9 promoter methylation as a biomarker to distinguish oral cancer patients at low risk of neck metastasis Pilot study evaluating methylation of HOXA9 , MT1A and HOXA11 in 3q8pq20 and non-3q8pq20 tumors. Methylation levels of the gene promoters are shown for individual 3q8pq20 and non-3q8pq20 tumors (open circles). The mean level is indicated by the red bar. Differential methylation in the two oral cancer subtypes is evident for HOXA9.Back to article page