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International Journal of Epidemiology|April 9, 1999
The effects of wine and tobacco consumption on cognitive performance in the elderly: a longitudinal study of relative riskD Leibovici, K Ritchie, B Ledésert, et al.Age and Ageing|September 1, 1996
Does education level determine the course of cognitive decline?D Leibovici, K Ritchie, B Ledésert, et al.The British Journal of Psychiatry : the Journal of Mental Science|April 1, 1996
A typology of sub-clinical senescent cognitive disorderK Ritchie, D Leibovici, B Ledésert, et al.Revue D'Epidemiologie Et De Sante Publique|January 4, 1998
Establishing the limits and characteristics of normal age-related cognitive declineK Ritchie, J Touchon, B Ledésert, et al.Comprehensive Psychiatry|April 4, 2000
Subclinical cognitive impairment: epidemiology and clinical characteristicsK Ritchie, B Ledésert, J TouchonInternational Journal of Geriatric Psychiatry|August 8, 1998
Progressive disability in senile dementia is accelerated in the presence of depressionK Ritchie, J Touchon, B LedésertAge and Ageing|August 25, 1999
Depressive illness, depressive symptomatology and regional cerebral blood flow in elderly people with sub-clinical cognitive impairmentK Ritchie, C Gilham, B Ledésert, et al.International Journal of Geriatric Psychiatry|August 10, 1999
Prodromal cognitive disorder in Alzheimer's diseaseJ Touchon, K RitchieJournal of Clinical Epidemiology|December 1, 1992
Heterogeneity in senile dementia of the Alzheimer type: individual differences, progressive deterioration or clinical sub-types?K Ritchie, J TouchonNeurology|January 10, 2001
Classification criteria for mild cognitive impairment: a population-based validation studyK Ritchie, S Artero, J TouchonPageof 46