1. In Britain the number ofabortions performed at 20 weeks or later fell from 3% in 1968 to less than 1% in the 1980s. Legal abortions performed later than 24 weeks' gestation have always been few, but the total has fallen from an average of 100 a year in the 1970s to less than
2. Abortion law reformed;Simms, M.; Hindell, K.,1971
3. Population Censuses and Surveys. Abortion statistics. London: HMSO, 1%9-87. (Registrar general's supplement on abortion 1%9, 1970, 1971, 1972 and 1973; OPCS abortion statistics series AB nos 1-14, 1974-1977; OPCS Abortion monitors;Ashton, J.;AB; Trends in induced abortion in England and Wales,1983
4. Services Agency for the Scottish Health Services. Scottish health statistics;Information and Statistics Division, Common,1973
5. Population Censuses and Surveys. Birth statistics 1837-83;Office of,1987