1. Alexandra Hospital, National and Kapodistrian University of Athens, Athens, Greece (K.S., G.G., F.A.)
2. University Hospital Heidelberg and German Center for Cardiovascular Research, Heidelberg, Germany (M.M., M.B., M.V., H.A.K., E.G.)
3. Institute of Cardiovascular Regeneration at Goethe University Frankfurt and German Center for Cardiovascular Research, Frankfurt, Germany (M.S., A.G., S.D.)
4. Cardiovascular Research Institute Basel and University Hospital of Basel, Basel, Switzerland (J.B., P.B., T.N., C.M.)
5. German Center for Cardiovascular Research and Goethe University Frankfurt, Frankfurt, Germany (K.S., A.M.Z.)
6. Institute of Cardiovascular Regeneration at Goethe University Frankfurt, Frankfurt, Germany (C.A.)
7. Democritus University of Thrace, Alexandroupolis, Greece (D.S.)
8. Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, the Netherlands (K.P.)
9. Cardiovascular Research Institute Basel and University Hospital of Basel, Basel, Switzerland, and University Heart Center Hamburg, Hamburg, Germany (R.T.)
10. Cardiovascular Research Centre, Institute of Genetic Medicine, Newcastle University and Cardiothoracic Centre, Newcastle upon Tyne Hospitals, NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (K.S.)