1. Anencephalus, hydrocephalus and spina bifida;Alter, M.;Archives of Neurology,1962
2. The incidences of congenital diseases and defects in a South Swedish population;Book, J.A.;Acta Geneticae et Statisticae Medicae,1951
3. PerinatalProblems;Butler, N.R.; Alberman, E.D.,1970
4. A family study of major CNS malformations in South Wales;Carter, C.O.; David, P.A.; Laurence, K.M.;Journal of Medical Genetics,1968
5. Spina bifida and anencephalus in Greater London;Carter, C.O.; Evans, K.;Journal of Medical Genetics,1973