Purpose To investigate the expression of retinoblastoma(Rb),minichromosome maintenance proteins 7(MCM7) proteins and its significance in cervical intraepithelial neoplasia and squamous cell carcinoma.Methods Experimental specimens were collected as follows: 10 cases of normal cervical tissue,90 cases of cervical intraepithelial neoplasias(including 30 cases of CIN1,30 cases of CIN2 and 30 cases of CIN3) and 30 cases of cervical squamous cell carcinoma,the expression of Rb,MCM7 were examined by immunohistoch...