1. Cummings SK, Nelson KB, Grether JK. Cerebral palsy in four northern California counties, births 1983 through 1985. J Pediatr 1993;123:230–237.

2. Pharaoh PO, Cooke RW. A hypothesis for the aetiology of spastic cerebral palsy—the vanishing twin. Dev Med Child Neurol 1997;39:292–296.

3. Hauser WA, Hesdorffer DC. Epilepsy, Frequency, Causes, and Consequences. New York : Demos, 1990;18–21.

4. Hauser WA. The prevalence and incidence of convulsive disorders in childhood. Epilepsia 1994;35[Suppl 2]:S1–6.

5. Camfield CS, Camfield PR, Wirrell E, et al. Incidence of epilepsy in childhood and adolescents: a population based study in Nova Scotia from 1977–1985. Epilepsia 1996;37:19–23.

6. Hauser WA, Annegers JF, Kurland LT. Incidence of epilepsy and unprovoked seizures in Rochester, Minnesota: 1935–1984. Epilepsia 1993;34:453–458.

7. Berg AT, Shinnar S, Levy SR, Testa FM. Newly diagnosed epilepsy in children: presentation at diagnosis. Epilepsia 1999;40:445–452.

8. Nayae RL, Peters EC, Bartholomew M, Landis R. Origins of cerebral palsy. Am J Dis Child 1989;143:1154–1161.

9. Curatolo P, Arpino C, Stazi MA, Medda E. Risk factors for the co-occurrence of partial epilepsy, cerebral palsy and mental retardation. Dev Med Child Neurol 1995;37:776–782.

10. Asku F. Nature and prognosis of seizures in patients with cerebral palsy. Dev Med Child Neurol 1990;32:661–668.

11. Ottman R, Annegers JF, Risch N, et al. Relations of genetic and environmental factors in the etiology of epilepsy. Ann Neurol 1996;39:442–449.

12. Badawi N, Watson L, Petterson B, et al. What constitutes cerebral palsy? Dev Med Child Neurol 1998;40:847–851.

13. Pharaoh PO, Cooke T, Cooke RW, Rosenbloom L. Birthweight specific trends in cerebral palsy. Arch Dis Child 1990;65:602–606.

14. Stanley FJ, Alberman E, Blair E. The cerebral palsies: epidemiology and causal pathways. Clin Dev Med 2000;151:208–211.

15. Hagberg B, Hagberg G, Olow I, von Wendt L. The changing panorama of cerebral palsy in Sweden: VII. Prevalence and origin in the birth year period 1987–90. Acta Paediatr 1996;85:954–960.

16. Topp M, Uldall P, Langhoff-Roos J. Trend in cerebral palsy birth prevalence in eastern Denmark: birth-year period 1970–89. Pediatr Perinatal Epidemiol 1997;11:451–460.

17. Pharaoh PO, Cooke T. Cerebral palsy and multiple births. Arch Dis Child Fetal Neonatal Ed 1996;75:F174–F177.

18. Petterson B, Nelson KB, Watson L, Stanley F. Twins, triplets and cerebral palsy in births in Western Australia in the 1980s. BMJ 1993;307:1239–1243.

19. Stanley FJ, Blair E, Hockey A, et al. Spastic quadriplegia in Western Australia. A genetic epidemiological study: 1. Case population and perinatal risk factors. Dev Med Child Neurol 1993;35:191–120.

20. Nelson KB, Ellenberg JH. Antecedents of cerebral palsy. Multivariate analysis of risk. N Engl J Med 1986;315:81–86.

21. Blair E, Stanley FJ. Intrauterine growth and spastic cerebral palsy: 1. Association with birth weight for gestational age. Am J Obstet Gynecol 1990;162:229–237.

22. Blair E, Stanley F. When can cerebral palsy be prevented? The generation of causal hypotheses by multivariate analysis of a case-control study. Paediatr Perinat Epidemiol 1993;7:272–301.

23. Kudrjveev T, Schoenberg B, Kurland L, Grouver H. Cerebral palsy: survival rates, associated handicaps, and distribution by clinical subtype. Neurology 1985;35:900–903.

24. Aicardi J. Epilepsy in brain-injured children. Dev Med Child Neurol 1990;32:191–202.

25. Hadjipanaysis A, Hadjichristodoulou C, Youroukos S. Epilepsy in patients with cerebral palsy. Dev Med Child Neurol 1997;39:659–663.

26. Kwong KL, Wong SN, Kwan TS. Epilepsy in children with cerebral palsy. Pediatr Neurol 1998;19:31–36.

27. Zafeiriou DI, Kontopoulos EE, Tsikoulas I. Characteristics and prognosis of epilepsy in children with cerebral palsy. J Child Neurol 1999;13:289–294.

28. Dooley JM, Gordon K, Camfield PR, et al. Discontinuation of anticonvulsant therapy in children free of seizures for 1 year. Neurology 1996;46:969–974.

29. Berg AT, Shinnar S. Relapse following discontinuation of antiepileptic drugs: a meta-analysis. Neurology 1994;44:601–608.

30. Camfield C, Camfield P, Smith B, et al. Biologic factors as predictors of social outcome of epilepsy in intellectually normal children: a population-based study. J Pediatr 1993;122:869–873.

31. Hollowach-Thurston J, Thurston DL, Hixon BB, Keller A. Prognosis of childhood epilepsy: additional follow- up of 148 children 5–23 years after withdrawal of anti- convulsant therapy. N Engl J Med 1982;306:831–836.

32. Peters ABC, Brouwer OF, Geerts AT, et al. Randomized prospective study of antiepileptic drugs in children with epilepsy. Neurology 1998;50:724–730.

33. Matricardi M, Brinciotti, M, Benedetti P. Outcome after discontinuation of antiepileptic drug therapy in children with epilepsy. Epilepsia 1989;30:582–589.

34. Roger J, Bureau M. Unilateral seizures: hemiconvulsions-hemiplegia syndrome and hemiconvulsions-hemiplegia epilepsy. In F Broughton , H Gastaut (eds), The Neurosciences, Electroencephalography and Clinical Neurophysiology [Suppl 35]. Amsterdam: Elsevier, 1982;211–221.

35. Traverse L, Dravet C, Roger J, et al. Epilepsy in children with severe cerebral palsy: outcome and evolution. Dev Med Child Neurol 1994;36[Suppl 70]:32–33.

36. Sillanpaa M, Jalava M, Olli K, Shinnar A. Long-term prognosis of seizures with onset in childhood. N Engl J Med 1998;338:1715–1722.

37. Delgado MR, Riela AR, Mills J, et al. Discontinuation of antiepileptic drug treatment after two seizure-free years in children with cerebral palsy. Pediatrics 1996;97:192–197.

38. Camfield CS, Breau L, Camfield PR. Impact of pediatric epilepsy on the family: a new scale for clinical and research use. Epilepsia 2001;42:104–112.

39. Humphreys P, Whiting S, Pham B. Hemiparetic cerebral palsy: clinical pattern and imaging in prediction of outcome. Can J Neurol Sci. 2000;27:210-219.

40. Carlsson M, Hagberg G, Olsson I. Clinical and aetiological aspects of epilepsy in children with cerebral palsy. Dev Med Child Neurol. 2003;45:371-376.

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