1. Department of Pathology (L.E.N., F.W., N.J.P., A.M.M., H.R., L.P., C.E.M.), University of Washington, Seattle.
2. Institute for Stem Cell and Regenerative Medicine (L.E.N., F.W., N.J.P., J.M., A.M.M., H.R., L.P., C.E.M.), University of Washington, Seattle.
3. Center for Cardiovascular Biology (L.E.N., F.W., N.J.P., J.M., A.M.M., H.R., L.P., C.E.M.), University of Washington, Seattle.
4. Department of Comparative Medicine (L.E.N), University of Washington, Seattle.
5. F.W. is currently at the Department of Experimental Pharmacology and Toxicology, University Medical Center Hamburg-Eppendorf, Germany.
6. N.J.P. is currently at the Institute for Molecular Bioscience, University of Queensland, Brisbane, Australia.
7. Department of Medicine/Cardiology (J.M., C.E.M.), University of Washington, Seattle.
8. J.M. is currently at the Cardiology Division, Swedish Medical Center, Seattle, WA.
9. Stem Cell Institute and Lillehei Heart Institute, Department of Medicine, University of Minnesota, Minneapolis (D.W.S., I.B., N.N., J.H.v.B.).
10. Department of Pediatrics, Howard Hughes Medical Institute, Cincinnati Children’s Hospital Medical Center, University of Cincinnati, OH (J.D.M.).
11. Department of Bioengineering (C.E.M.), University of Washington, Seattle.