From this nine-year survey a relation is postulated with an influenza epidemic which occurred during early gestation.
Get full access to this article
View all access options for this article.
References
1.
Penrose, L.S. : Genetics of anencephaly. J. Ment. Def. Res.1: 4, 1957.
2.
Sanilkstein, G.: A ten-year study of anencephaly. Calif. Med.96: 350, 1962.
3.
Cassady, G.: Anencephaly; a 6 year study of 367 cases. Amer. J. Obstet. Gynec.103: 1154, 1969.
4.
Edwards, J.H. : Congenital malformations of the central nervous system, in Scotland. Brit. J. Prev. Soc. Med.12: 115, 1958.
5.
Coffey, V.P. and Jessop, W.J.E.: A study of 137 cases of anencephaly . Ibid.11: 174, 1957.
6.
— and —: Maternal influenza and congenital deformities; a prospective study. Lancet2: 935, 1959.
7.
MacMahon, B. , Pugh, T.F. and Ingalls, T.H.: Anencephalus, spina bifida and hydrocephalus; incidence related to sex, race and season of birth, and incidence in siblings . Brit. J. Prev. Soc. Med.7: 211, 1953.
8.
Erey, S. and King, T.M.: Anencephaly ; a survey of 44 cases. Obstet. Gynec.27: 601, 1966.
9.
Lawrence, K.M. , Carter, C.O. and David, P.A.: Major central nervous system malformations in South Wales. Brit. J. Prev. Soc. Med.22: 212, 1968.
10.
Gittlesohn, A.M. and Milham, S.: Declining incidence of central nervous system anomalies in New York State. Ibid.16: 153, 1962.
11.
Böök, J.A. and Rayner, S.: A clinical and genetic study of anencephaly. Amer. J. Human Genet. 2: 61, 1950.
12.
Stallybrass, F.C.: Anencephaly in uniovular twins. Brit. J. Prev. Soc. Med.14: 136, 1960.
13.
Gorlin, R.J. and Pindborg, J.J.: Syndromes of the Head and Neck. New York, McGraw-Hill Book Co., 1964, p. 97.
14.
McKeown, T. and Record, R.G.: Seasonal incidence of congenital malformations of the central nervous system. Lancet1: 192, 1951.
15.
Leck, I. and Record R.G.: Seasonal incidence of anencephalus. Brit. J. Prev. Soc. Med.20: 67, 1966.
16.
Naggan, L.: The recent decline in prevalence of anencephaly and spina bifida. Amer. J. Epidem.89: 154, 1969.
17.
Leck, I.: Changes in the incidence of neural-tube defects. Lancet2: 791, 1966.
18.
Mortality and Morbidity.Annual Supplement Summary 1968. United States Department of Health, Education, and Welfare, Vol. 17, No. 53.
19.
Gwaltney, J.M. and Edmondson, W.P., Jr.: Personal communication .
20.
Lewis, L.: A case of twin anencephalic pregnancy. Brit. Med. J.2: 1500, 1960.
