1. Screening errors in cervical cytology screening;van der Graaf;Acta Cytol,1987
2. False negative rate in cervical cytology;van der Graaf;J Clin Pathol,1987
3. Morphometric analysis of dysplasia in cervical cone biopsy specimens in cases with false-negative cytology;Hartman;Obstet Gynecol,1986
4. Rescreening for quality control in cytology;Melamed;Acta Cytol,1996
5. Rules and regulations;CLIA;Fed Regist,1990