1Department of Neurology, Charles F. and Joanne Knight Alzheimer's Disease Research Center, Washington University School of Medicine, St. Louis, MO, USA
2Department of Neurology, Washington University School of Medicine, St. Louis, Mo. USA
3Department of Neurology, Washington University School of Medicine, St. Louis, MO, USA
4Department of Psychology, Washington University School of Medicine, St. Louis, MO, USA
5My Tutor Learning Center, Belleville, IL, USA
6Department of Occupational Therapy, Washington University School of Medicine, St. Louis, MO, USA
7The Rehabilitation Institute of St. Louis, St. Louis, MO, USA
8VITAS Healthcare, St. Louis, MO, USA
9Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
10Center for Clinical Studies, Washington University School of Medicine, St. Louis, MO, USA
11Division of Biostatistics, Washington University School of Medicine, St. Louis, Mo. USA
12Center for Alzheimer's Research and Treatment, Department of Neurology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
13Department of Radiology, Washington University School of Medicine, St. Louis, MO USA
14Department of Neurosurgery, Washington University School of Medicine, St. Louis, MO, USA
15Department of Neurology, Warren Alpert Medical School of Brown University, Providence, RI, USA
16Department of Medicine, Washington University School of Medicine, St. Louis, Mo., USA