Department of Genome Sciences, University of Washington School of Medicine, Seattle, Washington, USA.|Department of Genome Sciences, University of Washington School of Medicine, Seattle, Washington, USA.|Department of Genome Sciences, University of Washington School of Medicine, Seattle, Washington, USA.|Department of Genome Sciences, University of Washington School of Medicine, Seattle, Washington, USA.|Department of Genome Sciences, University of Washington School of Medicine, Seattle, Washington, USA.|Department of Genome Sciences, University of Washington School of Medicine, Seattle, Washington, USA.