1. Cervical cytology in England and Wales, 1965-80;Roberts, A.;Health Trends,1982
2. Population Cernsuses and Surveys. Occupational mortality. The Registrar General's decennial supplement for England and Wales 1970-72;Office of,1978
3. Cancer of the cervix: a sexually transmitted infection?;Beral, V.;Lancet,1974
4. Accepted 1 J7une,1983