1. Seattle Children’s Research Institute, Seattle, WA 98101, USA.
2. Benaroya Research Institute, Seattle, WA 98101, USA.
3. Department of Comparative Medicine, University of Washington School of Medicine, Seattle, WA 98195, USA.
4. Department of Pediatrics, University of Washington School of Medicine, Seattle, WA 98195, USA.
5. Department of Immunology, University of Washington School of Medicine, Seattle, WA 98195, USA.
6. Allen Institute for Immunology, Seattle, WA 98109, USA.
7. Department of Laboratory Medicine and Pathology, University of Washington School of Medicine, Seattle, WA 98195, USA.