BRAF and Behcet disease: If only the BRAF p.V600E mutant cases are considered, statistically significant differentiation of BD also was detected between II and III (p = 0.001), II and V (p = 0.0079), IV and V (p = 0.0039), II and IV, and III and V groups (p < 0.0001), and of tdVAF between the group II and III (p = 0.127), II and IV (p = 0.0019).