1. Division of Cardiology, Department of Medicine, Karolinska Institutet, Stockholm, Sweden (B.S., A.U., L.B., M.S., D.S., C.L., F.B., G.S.).
2. University Heart Centre Hamburg, Department of General and Interventional Cardiology and German Center for Cardiovascular Research (DZHK), Partner Site Hamburg/Lübeck/Kiel (B.S., D.W.).
3. Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht University, The Netherlands (A.U.).
4. Division of Cardiology, Cardiovascular Department, Azienda Sanitaria Universitaria Integrata di Trieste, Italy (D.S.).
5. Department of Cardiology and Department of Medical and Health Sciences, Linköping University, Sweden (U.D.).