Neuropsychological prediction of dementia in Parkinson’s disease
Florence Mahieux, Gilles Fénelon, Antoine Flahault, Marie-José Manifacier, Denyse Michelet, François Boller
Journal of Neurology, Neurosurgery & Psychiatry Feb 1998, 64 (2) 178-183; DOI: 10.1136/jnnp.64.2.178