1. Department of Neurology State University of New York Downstate Health Sciences University Brooklyn New York USA
2. Department of Neurochemistry and Psychiatry, Neuropsychiatric Epidemiology Unit, at the Sahlgrenska Academy University of Gothenburg Gothenburg Sweden
3. Department of Neurology, The Gertrude H. Sergievsky Center, Taub Institute for Research in Alzheimer's Disease and the Aging Brain Columbia University and The New York Presbyterian Hospital New York New York USA
4. 1st Department of Neurology, Aiginition Hospital National and Kapodistrian University of Athens Medical School Athens Greece
5. The Department of Epidemiology, Joseph P. Mailman School of Public Health Columbia University New York New York USA