1. Department of Health. Perinatal statistics 1984. Dublin: Stationery Office, 1987.
2. Wigglesworth, J. S. Monitoring perinatal mortality. Lancet 1980: 2, 684–6.
3. Mutch, L., Elbourne, D. Standard national perinatal data: a suggested common core of tabulatons. Community Med. 1983: 5, 251–9.
4. Kirke, P. N., Elwood, J. H. Anencephaly in the United Kingdom and Republic of Ireland. Br. Med. J. 1984: 289, 1621.
5. Office of Population Censuses and Surveys. Mortality statistics 1984. Perinatal and infant: social and biological factors. Series DH3, No. 17. London: Her Majesty’s Stationery Office, 1986.