1. Department of Cardiology, University Hospital Bern, Switzerland
2. Division of Cardiology, Geneva University Hospital, Switzerland
3. Department of Ambulatory Care and Community Medicine, University of Lausanne, Switzerland
4. Clinical Trials Unit Bern, University of Bern, Switzerland
5. Department of Cardiology, University Hospital Zurich, Switzerland
6. Department of General Internal Medicine, Bern University Hospital, Switzerland
7. Institute of Primary Health Care (BIHAM), University of Bern, Switzerland
8. Service of Internal Medicine, Geneva University Hospital, Switzerland
9. Service of Cardiology, Lausanne University Hospital, Switzerland
10. Royal Brompton and Harefield Hospital Trust and Imperial College, UK