1. Department of Bioengineering, University of Washington, Seattle, Washington.
2. Center for Cardiovascular Biology, Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, Washington.
3. Molecular and Cellular Biology Program, University of Washington, Seattle, Washington.
4. Department of Pathology, University of Washington, Seattle, Washington.
5. Research Histology Lab, Department of Pathology, University of Colorado, Boulder, Colorado.
6. Department of Chemical and Biological Engineering, University of Colorado, Boulder, Colorado.
7. Howard Hughes Medical Institute, University of Colorado, Boulder, Colorado.
8. Department of Medicine/Cardiology, University of Washington, Seattle, Washington.