1. Cervical cancers diagnosed after negative results on cervical cytology: perspective in the 1980s;Mitchell;Br Med J,1990
2. False negative cytology rates in patients in whom invasive cervical cancer subsequently developed;Morell;Obstet Gynecol,1982
3. Cervical smear histories of 500 women with invasive cervical cancer in Yorkshire;Paterson;Br Med J,1984
4. Replies to questions on quality assurance measures in cytopathology;Acta Cytol,1988
5. The 1988 Bethesda system for reporting cervical/vaginal cytologic diagnoses;Anon;Acta Cytol,1989