| Affiliation: | 1. Department of Neurological Sciences, Rush University Medical Center, Chicago, Illinois, USA;2. Department of Neurology, Oregon Health Sciences University and Veterans Affairs Portland Health Care System, Portland, Oregon, USA;3. Department of Neurology, University of Alabama and Birmingham Veterans Affairs Medical Center, Birmingham, Alabama, USA;4. Department of Neurology, University of South Florida, Tampa, Florida, USA;5. Department of Neurology, Duke University, Durham, North Carolina, USA |
