MKI67 and cervical cancer: Clinicopathological features of 40 cervical cancer patients (30 with and ten without paired normal tissues) showed that increased expression of circZFR was positively associated with lymphatic metastasis (Table 1, P =0.049), squamous cell carcinoma antigen (SCC Ag) value (Table 1, P =0.049), and Ki67 value (Table 1, P =0.003).