1. Screening for early detection of cancer: general principles;Chamberlain,1982
2. Trends in the incidence of cervical cancer in the Nordic countries;Hakama,1982
3. Cervical cytology in England and Wales 1965–1980;Roberts;Hlth Trends,1982
4. Trends in Cancer Mortality 1951–1980;Office of Population Censuses and Surveys,1983
5. Changing pattern of cervical cancer rates;Draper;Br. med. J.,1983