1. Department of Medicine, Stanford University, CA (C.A.B.K., F.S., M.R., P.C., G.M., M.I.A., M.A.S., V.J., J.A.B.Z., T.B., A.J.R., P.J.W., S.M.N.).
2. Department of Cardiology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Germany (C.A.B.K.).
3. Department of Engineering, University of California, Berkeley (S.H.).
4. ElectroCardioMaths Programme, Imperial College, London, United Kingdom (J.A.B.Z., N.S.P.).
5. Klinikum Coburg, Germany (J.B.).
6. Department of Medicine, Indiana University, Indianapolis (J.M.M.).
7. Department of Medicine, University of California San Diego (D.E.K.).
8. Department of Medicine, University of Colorado, Denver (W.H.S.).