1. Liverpool Heart and Chest Hospital; Thomas Drive Liverpool L14 3PE UK
2. Medical Statistics Unit; London School of Hygiene and Tropical Medicine; London UK
3. Golden Jubilee National Hospital; Glasgow UK
4. Brigham and Women's Hospital; Boston MA USA
5. Sahlgrenska University Hospital/Östra; Göteborg Sweden
6. Division of Cardiology; Duke University Medical Center; Durham NC USA
7. Hamilton Health Sciences and McMaster University; Hamilton ON Canada
8. Karolinska Hospital; Stockholm Sweden
9. AstraZeneca LP; Wilmington DE USA
10. Associazione Nazionale Medici Cardiologi Ospedalieri Research Center; Florence Italy
11. University of Glasgow; Glasgow UK