In Iranian study (59), six SNPs in IL23R-IL12RB2 were found to be associated with BD; the most significant of which were rs17375018 (OR = 1.51, p = 1.93 × 10−6), rs7517847 (OR = 1.48, p = 1.23 × 10−6), and rs924080 (OR = 1.29, p = 1.78 × 10−5). This evidence concerns the gene IL12RB2 and Behcet disease.