Figure 1From: GT-repeat polymorphism in the heme oxygenase-1 gene promoter and the risk of carotid atherosclerosis related to arsenic exposureFrequency distribution of the number of GT repeats in patients having carotid atherosclerosis index (Black) and in controls none the index (Grey) in (A) Lanyang cohort and (B) LMN cohort.Back to article page