1. Department of Neurology; University of Washington; Seattle Washington USA
2. Neurology Section; VA Puget Sound Health Care System; Seattle Washington USA
3. Nemours/Alfred I. duPont Hospital for Children; Wilmington Delaware USA
4. Department of Medicine (Medical Genetics); University of Washington; Seattle Washington USA
5. Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System; South Columbian Way, S-182-GRECC, Seattle Washington 98108 USA
6. Center for Precision Diagnostics; University of Washington; Seattle Washington USA
7. Department of Pathology; University of Washington; Seattle Washington USA