1. Department of Bioengineering, University of Washington, Seattle, WA 98195.
2. Center for Cardiovascular Biology, Institute for Stem Cell and Regenerative Medicine, and Department of Pathology, University of Washington, Seattle, WA 98109.
3. Benaroya Research Institute, Seattle, WA 98101.
4. Division of Cardiology, Department of Medicine, University of Washington, Seattle, WA 98195.
5. Brody School of Medicine, East Carolina University, Greenville, NC 27858.