Proposed diagnostic criteria for apathy in Alzheimer's disease and other neuropsychiatric disorders

P. Robert, C. U. Onyike, A. F.G. Leentjens, K. Dujardin, P. Aalten, S. Starkstein, F. R.J. Verhey, J. Yessavage, J. P. Clement, D. Drapier, F. Bayle, M. Benoit, P. Boyer, P. M. Lorca, F. Thibaut, S. Gauthier, G. Grossberg, B. Vellas, J. Byrne