1. Basic Sciences and Computational Biology, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA.
2. Department of Genome Sciences, University of Washington, Seattle, WA 98109, USA.
3. Medical Scientist Training Program, University of Washington, Seattle, WA 98109, USA.
4. Molecular and Cellular Biology Graduate Program, University of Washington, Seattle, WA 98109, USA.
5. Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA.
6. Howard Hughes Medical Institute, Seattle, WA 98109, USA.