1. Cardiology, ASST Spedali Civili di Brescia, Department of Medical and Surgical Specialties Radiological Sciences, and Public Health, University of Brescia Brescia Italy
2. Division of Cardiology, Department of Medicine Karolinska Institutet Stockholm Sweden
3. Department of Cardiology St George's Hospital London UK
4. Heart, Vascular and Neuro Theme, Karolinska University Hospital Stockholm Sweden
5. Department of Cardiology and Department of Health Medicine and Caring Sciences, Linköping University Linköping Sweden
6. Department of Laboratory Medicine Section of Clinical Physiology, Karolinska Institutet Huddinge Sweden
7. San Raffaele, Cassino, Italy
8. St George's University Hospital London UK