1. Forrest, A. P. M. Breast Cancer Screening. Report to the Health Ministers of England, Scotland and Northern Ireland by a working group chaired by Sir Patrick Forrest. London: HMSO; 1987.
2. Hayes, C, O’Herlihy, B., Hynes, M., Johnson, Z. The Impact of Reminder Letters on Attendance for Breast Cancer Screening (unpublished).
3. Mitchell, H. Reminder Letters for Women when repeat Pap Smears are Due. Community Health Studies, 1990; XIV(2): 126–31.