1. Department of Cardiology, University of Groningen; University Medical Centre Groningen; Hanzeplein 1 9713 GZ Groningen the Netherlands
2. Department of Clinical Epidemiology, Biostatistics, and Bioinformatics, Academic Medical Centre; University of Amsterdam; Amsterdam the Netherlands
3. Inserm CIC 1433; Université de Lorrain, CHU de Nancy; Nancy France
4. Department of Cardiovascular Sciences; University of Leicester, Glenfield Hospital, Leicester, UK and NIHR Leicester Cardiovascular Biomedical Research Unit, Glenfield Hospital; Leicester UK
5. Department of Heart Diseases, Wroclaw Medical University, Poland and Cardiology Department; Military Hospital; Wroclaw Poland
6. Institute of Cardiology, Department of Medical and Surgical Specialties, Radiological Sciences and Public Health; University of Brescia; Italy
7. School of Medicine Centre for Cardiovascular and Lung Biology, Division of Medical Sciences; University of Dundee, Ninewells Hospital and Medical School; Dundee UK
8. Department of Cardiology, Heart Failure Unit; Athens University Hospital Attikon, National and Kapodistrian University of Athens; Athens Greece
9. University of Stavanger; Stavanger Norway
10. University of Bergen; Bergen Norway
11. National Heart and Lung Institute; Royal Brompton and Harefield Hospitals, Imperial College; London UK
12. Innovative Clinical Trials, Department of Cardiology and Pneumology; University Medical Centre Göttingen (UMG); Göttingen Germany