MKI67 and Behcet disease: The results of pairwise comparison via the Nemenyi test revealed that the difference in the Ki-67 expression was statistically significant between the CSCC group and the AK group (P < 0.05), but it was not statistically significant between the CSCC group and the BD group and between the BD group and the AK group (P > 0.05), as shown in Table 1.