1. Clinic of Cardiac and Vascular Diseases, Institute of Clinical Medicine, Faculty of MedicineVilnius University Vilnius Lithuania
2. State Research Institute Centre For Innovative Medicine Vilnius Lithuania
3. Cardiology Department, Hammersmith HospitalImperial College Healthcare NHS Trust London UK
4. Department of Medical Sciences, Uppsala University, and Clinical PhysiologyUniversity Hospital Uppsala Sweden
5. University Medical Center GroningenUniversity of Groningen, Department of Cardiology Groningen The Netherlands
6. Cleveland Clinic Abu Dhabi Abu Dhabi United Arab Emirates
7. Department of Cardiology, University Heart CenterUniversity Hospital Zurich Zurich Switzerland
8. Institute of Biomedical EngineeringUniversity and ETH Zurich Zurich Switzerland
9. Cardiovascular Sciences Research Centre, St George's University Hospitals NHS TrustUniversity of London London UK
10. King's Health Partners, King's College Hospital NHS Foundation Trust London UK
11. American Medical CenterAmerican Heart Institute Nicosia Cyprus
12. Department of Advanced Biomedical SciencesFederico II University of Naples Naples Italy
13. IRCCS SDNInstitute of Nuclear and Diagnostic Sciences Naples Italy
14. Cardiology DepartmentUniversity Hospital Ramón y Cajal Madrid, Spain; University Alcala, Madrid, Spain; CIBERCV, Instituto de Salud Carlos III (ISCIII) Spain
15. Department of Internal Medicine, General Hospital Murska Sobota, Faculty of MedicineUniversity of Ljubljana Murska Sobota Slovenia
16. University of Belgrade, Faculty of MedicineClinical Center of Serbia Belgrade Serbia
17. University Heart Center, Department of CardiologyUniversity Hospital Zurich Zurich Switzerland
18. Department of Medical SciencesIRCCS San Raffaele Roma Rome Italy
19. Cardiovascular Sciences, National Heart and Lung InstituteImperial College London London, UK; Cardiology Department, Hammersmith Hospital, Imperial College Healthcare NHS Trust London UK
20. 1st Department of CardiologyNational and Kapodistrian University of Athens Athens Greece