1. Division of Medical Genetics, Department of Medicine, University of Washington, Seattle, Washington, USA.
2. Department of Microbiology, University of Washington, Seattle, Washington, USA.
3. Department of Immunology, University of Washington, Seattle, Washington, USA.
4. Washington National Primate Research Center, Seattle, Washington, USA.
5. Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan.
6. Stem and Gene Therapy Program, Fred Hutchinson Cancer Research Center, Seattle, Washington, USA.
7. Department of Pathology, University of Washington, Seattle, Washington, USA.