1. Albert Einstein College of Medicine, Montefiore Medical Center; Montefiore Einstein Center for Heart & Vascular Care; 111 East 210th Street Bronx New York USA 10467
2. Brigham and Women's Hospital, Harvard Medical School; Department of Surgery; 75 Francis Street Boston MA USA 02115
3. Brigham and Women's Hospital; Heart & Vascular Centre; 75 Francis Street Boston MA USA 02115
4. Yale New Haven Health System; Department of Internal Medicine; 267 Grant Street Bridgeport Connecticut USA 06610
5. Brigham and Women's Hospital; Cardiovascular Medicine; Brigham Circle, 1620 Boston Massachusetts USA 02120-1613
6. Division of Cardiovascular Medicine, Duke Heart Center, Ambulatory Care; Programme for Advanced Coronary Diseases; Box 3126, Room 8676A HAFS Building Duke University Medical Center Durham North Carolina USA 27710
7. Duke University; School of Medicine; 201 Trent Drive Durham North Carolina USA 27705
8. University of North Carolina; Department of Biology; 201 Councilman court Morrisville North Carolina USA 27560
9. Duke University School of Medicine; Department of Medicine/Cardiology; DUMC 3157 Durham North Carolina USA 27710
10. Yale New Haven Health System; Department of Cardiology; 267 Grant St Bridgeport Connecticut USA 06610
11. Massachusetts General Hospital; General Surgery; 55 Fruit Street Boston MA USA 02114
12. Copenhagen Trial Unit, Centre for Clinical Intervention Research, Department 7812, Rigshospitalet, Copenhagen University Hospital; The Cochrane Hepato-Biliary Group; Blegdamsvej 9 Copenhagen Denmark DK-2100
13. Zealand University, Roskilde Hospital; Cardiac Catheterization Laboratory; Køgevej 7-13 Roskilde Denmark 4000
14. Copenhagen University Hospital, Rigshospitalet; Department of Cardiology; Blegdamsvej 9 Copenhagen Denmark 2100