1. University College London, United Kingdom (J.B.-A., D.S., M.O., P.T., P.D.L.).
2. Barts Heart Centre, London, United Kingdom (M.F., V.V., R.B.S., P.D.L.).
3. Queen Mary’s College London, United Kingdom (M.F., A.T.).
4. King’s College London, United Kingdom (S.C.).
5. Cambridge University, United Kingdom (A.A.G., C.L.-H.H.).