1. Division of Medical Genetics; Department of Medicine; University of Washington Medical Center; Seattle Washington
2. Division of Genetic Medicine; Department of Pediatrics; Seattle Children's Hospital and University of Washington; Seattle Washington
3. Department of Neurology; University of Washington Medical Center; Seattle Washington
4. Geriatric Research; Education and Clinical Center (GRECC), VA Puget Sound Health Care System; Seattle Washington
5. Department of Neurology; Seattle Children's Hospital and University of Washington; Seattle Washington