Research Article

Polymorphisms of TNF-α -308 G/A and IL-8 -251 T/A Genes Associated with Urothelial Carcinoma: A Case-Control Study

Figure 2

Joint effects of (a) the tumor necrosis factor α (TNF-α) genotype and cigarette smoking and (b) the interleukin 8 (IL-8) genotype and cigarette smoking on the urothelial carcinoma (UC) risk after adjusting for age, gender, educational level, and alcohol consumption. .
(a)
(b)