1. Brooks, D. N., Memory and head injury. J. nerv. and ment. Dis.5 (1972), 350?355.
2. Davidson, K., Bagley, C. R., Schizophrenia-like psychoses associated with organic disorders of the central nervous system: a review of the literature. In Current Problems in Neuropsychiatry, pp. 113?184. Edited by R. N. Herrington. Brit. J. of Psych. Spec. Publ. No. 4 (1969).
3. Dencker, S. J., A follow-up study of 128 closed head injuries in twins using co-twins as controls. Acta Psych. Neurol.33, suppl. 123 (1958).
4. Fahy, T. J., Irving, M. A., Millac, P., Severe head injuries: a six year followup. Lancet2 (1967), 475?479.
5. Heiskanen, O., Sipponen, P., Prognosis of severe brain injury Acta Neurol. Scandinav.46 (1970), 343?348.