Deb, S. & Braganza, J. (1999) Comparison of rating scales for the diagnosis of dementia in adults with Down's syndrome. Journal of Intellectual Disability Research, 43, 400–408.
Holland, A. J., Hon, J., Huppert, F. A., et al (1998) Population-based study of prevalence and presentation of dementia in adults with Down's syndrome. British Journal of Psychiatry, 172, 493–498.
National Institute for Clinical Excellence (2001) Guidance for the Use of Donepezil, Rivastigmine and Galantamine for the Treatment of Alzheimer's Disease.
Patel, P., Goldberg, D. & Moss, T. (1993) Psychiatric morbidity in older people with moderate and severe learning disability. II: The prevalence study. British Journal of Psychiatry, 163, 481–491.
Zigman, W., Schupf, N., Haveman, M., et al (1997) The epidemiology of Alzheimer's disorder in intellectual disability: results and recommendations from an international conference. Journal of Intellectual Disability Research, 41, 76–80.