1. Department of Cardiology, University Hospital Antwerp, Antwerp, Belgium
2. Department of Cardiology, University Hospital Brussels, Brussels, Belgium
3. Centre de recherche en Epidémiologie, Biostatistiques et Recherche Clinique, School of Public Health, Université Libre de Bruxelles, Brussels, Belgium
4. Department of Cardiology, GHDC, Charleroi, Belgium
5. Division of Cardiovascular Intensive Care, Cliniques universitaires Saint Luc, Brussels, Belgium
6. Department of Cardiology, University Hospital Leuven, Leuven, Belgium
7. Department of Cardiology, CHU, Charleroi, Belgium
8. Department of Cardiology, Hospital Roeselare, Roeselare, Belgium
9. Department of Cardiology, Ghent University Hospital, Ghent, Belgium
10. Department of Cardiology, CHR Citadelle Liège, Liège, Belgium
11. Department of Cardiology, Hospital Sint-Jan Brugge, Brugge, Belgium
12. Division of Cardiology and Pole of Cardiovascular Research, Institut de Recherche Experimentale et Clinique, Cliniques universitaires Saint Luc, Brussels, Belgium
13. Department of Intensive Care, Belgium Catholic University Hospital Mont-Godinne, Brussels, Belgium
14. Laboratory of Environmental Research, Brussels Environment, Brussels, Belgium
15. Belgian Interregional Environment Agency, Brussels, Belgium
16. Department of Cardiology, University hospital of Liege, Liège, Belgium
17. Department of Cardiology, OLV Aalst, Aalst, Belgium
18. Department of Cardiology, Hospital Maria Middelares, Ghent, Belgium
19. Department of Cardiology, Catholic University Hospital Mont-Godinne, Brussels, Belgium