1. Principles and Practice of Screening for Disease;Wilson,1968
2. Screening: Evidence and Practice;Raffle,2019
3. Effectiveness and efficiency: Random reflections on health services. Nuffield Trust;Cochrane,1972
4. Conization for pre-invasive and early invasive carcinoma of the uterine cervix;Larsson;Acta Obstet Gynaecol Scand,1983
5. Concluding remarks;Doll;N Z Med J,1973