Affiliation: | 1. Division of Geriatric Psychiatry, Department of Psychiatry, Columbia University, New York, NY;2. Division of Biostatistics, New York State Psychiatric Institute and Columbia University, New York, NY;3. Department of Neurology, Gertrude H. Sergievsky Center, and Taub Institute for Research on Alzheimer's Disease and the Aging Brain, College of Physicians and Surgeons, Columbia University, New York, NY;4. Smell and Taste Center, University of Pennsylvania, Philadelphia, PA |