1. Congenital hydrocephalus with defective development of the cerebellar vermis (Dandy-Walker syndrome);Brodal,1959
2. Vermian agenesis and unsegmented midbrain rectum;Caloger,1977
3. Agenesis of the corpus callosum, infantile spasms, ocular anomalies (Aicardi's syndrome);de Jong,1976
4. The dysraphic state;Gardner,1973
5. Neuroradiology in infants and children;Harwood-Nash,1976