1. Department of Cardiology; Univerity of Hull; UK
2. Deutsches Herzzentrum Berlin, Department of Cardiothoracic and Vascular Surgery; Berlin Germany
3. Department of Cardiac Surgery; Royal Brompton and Harefield Hospitals; London UK
4. Clinical Cardiology, National Heart & Lung Institute; Imperial College School of Medicine; London UK
5. Advanced Heart Disease Section in Brigham and Women's Hospital; Boston USA
6. Epidemiology and Population Health; Albert Einstein College of Medicine; New York USA
7. Department of Cardiology, Franz-Volhard-Klinik (Charité, Campus Berlin-Buch) at Max Delbrück Centrum für Molekulare Medizin; Berlin Germany