1. Human Biology Division, Fred Hutchinson Cancer Research Center, Seattle, United States
2. Molecular and Cellular Biology Program, University of Washington, Seattle, United States
3. Basic Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, United States
4. Computational Biology Program, Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, United States
5. Medical Scientist Training Program, University of Washington, Seattle, United States
6. Department of Neurology, University of Rochester Medical Center, Rochester, United States
7. Department of Human Genetics, Leiden University Medical Center, Leiden, Netherlands
8. Department of Neurology, University of Washington, Seattle, United States