1. From the King’s British Heart Foundation Centre, King’s College London, United Kingdom (C.S., T.B., A.J., K.T., A.Z., J.B.-B., B.S., M. Mayr)
2. Department of General and Interventional Cardiology, University Heart Centre Hamburg Eppendorf, Germany (C.S., N.A.S., J.T.N., T.Z., D.W., S.B.)
3. German Centre of Cardiovascular Research (DZHK), Partner Site Hamburg, Luebeck, Kiel, Germany (C.S., N.A.S., J.T.N., T.Z., D.W., S.B.)
4. Bart’s Heart Centre, St. Bartholomew's Hospital, West Smithfield, London (A.J.)
5. King’s British Heart Foundation Centre, King’s College London, Guy’s and St Thomas’ Hospitals, United Kingdom (M. Marber)
6. Department of Cardiology, Kerckhoff Heart and Thorax Center, Bad Nauheim, Germany and German Centre of Cardiovascular Research (DZHK), Partner Site Rhine-Main, Bad Nauheim, Germany (C.L.).