TNFSF4 and Behcet disease: A significant decrease was observed in the GG genotype frequency of TNFSF4/rs1234313 in the BD patients compared to the controls (Pc = 0.013, OR = 0.513), whereas the A allele of TNFSF4/rs1234313 was markedly increased (Pc = 0.012, OR=1.421).