1. Division of Geriatric Psychiatry Department of Psychiatry, Eginition Hospital, University of Athens Medical School, Athens, Greece
2. Institute of Psychiatry, University of Bologna, Bologna, Italy
3. European Centre for the Quality of Life – E.C.Qua.L. Biomedical Research Foundation of the Academy of Athens, Greece
4. Neuroscience Department, Istituto di Ricerche Farmacologiche “Mario Negri”, Milan, Italy
5. Department of Pharmacology, University of Athens Medical School, Athens, Greece
6. Laboratory of Biological Chemistry, University of Athens Medical School, Athens, Greece
7. Department of Psychiatry, Eginition Hospital, University of Athens Medical School, Athens, Greece