1. Division of Cardiovascular Medicine; Brigham and Women's Hospital; 75 Francis Street Boston MA 02445 USA
2. Department of Cardiology, Rigshospitalet; University of Copenhagen; Copenhagen Denmark
3. ANMCO Research Center; Firenze Italy
4. Faculty of Medicine; University of Montreal; Montreal Canada
5. Novartis Pharmaceuticals; East Hanover NJ USA
6. Cardiovascular Research Centre; University of Glasgow; Glasgow UK