1. Neurofibrillary tangles, granulovacuolar degeneration and neuron loss in Down's syndrome: Quantitative comparison with Alzheimer dementia;Ball;Annals of Neurology,1980
2. The development of Alzheimer's disease in Down's syndrome assessed by auditory event-related potentials;Blackwood;Journal of Mental Deficiency Research,1988
3. Depression and the onset of dementia in adults with mental retardation;Burt;American Journal on Mental Retardation,1992
4. Differential rates of psychiatric disorders in adults with Down's syndrome compared with other mentally handicapped adults;Collacott;British Journal of Psychiatry,1992