1. Department of Internal Medicine II, Cardiology, and Comprehensive Center of Cardiovascular Medicine CCVM, Medical University of Vienna , Währinger Gürtel 18-20, Vienna A-1090 , Austria
2. Department of Cardiology, Oslo University Hospital Rikshospitalet , Pb 4950 Nydalen, 0424 Oslo , Norway
3. Aarhus University Hospital , Palle Juul Jensens Boulevard 99 8200 Aarhus N Denmark
4. Cardiology Department, Grenoble - Alpes University Hospital , 38043 Grenoble , France
5. Royal Free Hospital, London , Pond Street, Middlesex, London, NW3 2QG
6. Hospital Universitario 12 de octubre , Avda de Cordoba SN, 28041 Madrid , Spain
7. General University Hospital , U Nemocnice 2, 128 08 Prague 2 , Czech Republic
8. Pulmonary Circulation Centre Jagiellonian University Medical College , John Paul II Hospital in Krakow, Pradnicka Str. 80, 31-202 Krakow
9. Department of Pulmonary Circulation, Thromboembolic Diseases and Cardiology Centre of Postgraduate Medical Education , EHC Otwock, Borowa 14/18, Otwock 05-400 , Poland
10. Department of Cardiology, National Hospital Organization Okayama Medical Center , 1711-1 Tamasu, Kita-ku, Okayama 701–1192 , Japan
11. Medizinische Hochschule Hannover - Institut für Diagnostische und Interventionelle Radiologie Carl-Neuberg-Str. 1, 30625 Hannover
12. Dipartimento DIMEC (Dipartimento di Scienze Mediche e Chirurgiche), Università di Bologna , 40126 Bologna , Italy
13. Department of Cardiology, St. Antonius Hospital , Koekoekslaan 1, 3435 CM, Nieuwegein , The Netherlands
14. Department of Cardiology, University Medical Center Utrecht , Heidelberglaan 100, 3584 CX, Utrecht , The Netherlands
15. Department of Internal Medicine and Cardiology, Medical University of Warsaw , Zwirki I Wigury 61, 02-091 Warsaw , Poland
16. Department of Cardiology, Bern University Hospital, Inselspital, University of Bern Freiburgstrasse 18 3010 Bern , Switzerland
17. Dept. of Cardiology and Cologne Cardiovascular Research Center, Heart Center at the University Hospital Cologne , Kerpener Str. 62, 50937 Köln , Germany
18. Department of Thoracic Surgery, Kerckhoff Heart and Thorax Centre , Benekestrasse 2-8, 61231 Bad Nauheim , Germany
19. Interventional Radiology Department, Marie Lannelongue Hospital , Le Plessis Robinson 92350 France