TNFSF4 and Behcet disease: The data collected from the two stages indicated significant increases in the A allele and AA genotype frequency of TNFSF4/rs1234313 in BD patients (Pc = 4.21×10−4, OR = 1.342; and Pc = 0.044, OR = 1.374, respectively) compared to healthy controls, while the GG genotype frequency of TNFSF4/rs1234313 was decreased (Pc = 0.011, OR = 0.603).