1. Vorarlberg Institute for Vascular Investigation and Treatment (VIVIT), Academic Teaching Hospital Feldkirch, Carinagasse 47, 6800 Feldkirch, Austria
2. Division of Angiology, Swiss Cardiovascular Center, Freiburgstrasse 18, University Hospital Bern, 3010 Bern, Switzerland
3. Doctorate Studies Medical Science, Private University of the Principality of Liechtenstein, Dorfstrasse 24, 9495 Triesen, Principality of Liechtenstein
4. Drexel University College of Medicine, 2900 W Queen Ln, Philadelphia, PA 19129, USA
5. Department of Medical Sciences, IRCCS San Raffaele Hospital, Via della Pisana 235, 00163 Rome, Italy
6. Technion-Israel Institute of Technology, Ruth and Bruce Rappaport School of Medicine, Efron St 1, Bat Galim, 3525433 Haifa, Israel
7. 3rd Medical Department, Cardiology and Intensive Care Medicine, Wilhelminen Hospital, Montleartstraße 37, 1160 Vienna, Austria
8. Medical School, Cardiology, Sigmund Freud University, Campus Prater, Freudplatz 1, 1020 Vienna, Austria
9. Department of Medicine I, Academic Teaching Hospital Feldkirch, Carinagasse 47, 6800 Feldkirch, Austria
10. Department of Internal Medicine II, Medical University of Vienna, Währinger Gürtel 18-20, 1090 Vienna, Austria
11. Cardiology Unit, Department of Medicine, Karolinska Institute, Solnavägen 1, 171 77 Solna, Sweden
12. Cardiology Practice Pasing, Institutstraße 14, 81241 Munich, Germany
13. Medical Faculty, Clinical Medicine, University of the Saarland, Kirrberger Straße, 66421 Homburg, Germany
14. Department of Cardiology, Oslo University Hospital Ulleval, Kirkeveien 166, 0450 Oslo, Norway
15. Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Søsterhjemmet, Kirkeveien 166, 0450 Oslo, Norway