Lars Bertram, M.D. Assistant Professor of Neurology (Harvard Medical School) Assistant in Genetics (Massachusetts General Hospital) Genetics and Aging Research Unit MassGeneral Institute for Neurodegenerative Disease (MIND) 114, 16th Street, Rm. 3800 Charlestown, MA 02129

John C. S. Breitner, M.D., M.P.H. Director, GRECC (S-182) VA Puget Sound Health Care System 1660 South Columbian Way Seattle, WA 98108

Anne M. Fagan, Ph.D. Research Associate Professor Dept. of Neurology Washington University School of Medicine 660 S. Euclid Ave., Box 8111 St. Louis, MO 63110

Dora Games, Ph.D. Vice President, Pharmacology Elan Pharmaceuticals 800 Gateway Blvd. South San Francisco, CA 94080

Lars Lannfelt, M.D., Ph.D. Professor Uppsala University Hospital, Box 609 Dept. of Public Health/Geriatrics 751 25 Uppsala, Sweden

Tommaso Russo, M.D. Professor CEINGE biotecnologie avanzate Università di Napoli Federico II via S. Pansini 5 80131 Napoli, Italy

Reisa Sperling, M.D., M.MSc. Assistant Professor of Neurology, Harvard Medical School Director of Clinical Research, Memory Disorders Unit Brigham and Women's Hospital 221 Longwood Avenue Boston, MA 02115

John Q. Trojanowski, M.D., Ph.D. Professor of Geriatric Medicine and Gerontology Director, Institute on Aging Director, Alzheimer's Disease Center Co-director, Center for Neurodegenerative Disease Research and Marian S. Ware Alzheimer Drug Discovery Program Department of Pathology and Laboratory Medicine University of Pennsylvania School of Medicine HUP, Maloney 3rd Floor 36th and Spruce Streets Philadelphia, PA 19104-4283 USA

Li-Huei Tsai, Ph.D. Professor Department of Pathology Harvard Medical School 77 Avenue Louis Pasteur Room 858C Boston, MA 02115

Robert Vassar, Ph.D. Associate Professor Department of Cell and Molecular Biology Northwestern University The Feinberg School of Medicine 303 East Chicago Avenue Ward 4-260 Chicago, IL USA 60611-3006