MKI67 and neoplasm: The association between MIR-34B/C and MIR-203 methylation and Ki-67 expression level of more than 45% in neoplasm tissues was revealed (p = 0.026, OR = 3.819 (95% CI: 1.139; 12.804) and p = 0.011, OR = 4.457 (95% CI: 1.372; 14.481), respectively) (Table 4).