1. 1st Department of Neurology, Aiginition Hospital National and Kapodistrian University of Athens Medical School Athens Greece
2. Department of Nutrition and Dietetics Harokopio University Athens Greece
3. Lab of Cognitive Neuroscience, School of Psychology Aristotle University of Thessaloniki Thessaloniki Greece
4. School of Medicine University of Thessaly Larissa Greece
5. Department of Neurology, Medical School University of Cyprus Nicosia Cyprus
6. Athens Association of Alzheimer's Disease and Related Disorders Athens Greece
7. Taub Institute for Research in Alzheimer's Disease and the Aging Brain, the Gertrude H. Sergievsky Center, Department of Neurology Columbia University New York, New York USA