1. Barts Heart Centre, Barts Health NHS Trust, London, United Kingdom (A.J.G., M.O., G.D., H.D., N.T.S., J.D.L., A. Cambridge, J.G., N.J.O., S.W.-A., M.L., M.F., M.J.E., A. Chow, S.S., M.D., R.J.S., R.J.H., P.D.L.).
2. Department of Mechanical Engineering (M.O.), University College London, United Kingdom.
3. Institute of Biomedical Engineering, University of Oxford, United Kingdom (E.Z.).
4. Institute of Cardiovascular Science (P.T., P.D.L.), University College London, United Kingdom.