1. Massachusetts General Hospital; Boston MA USA
2. The Ochsner Clinical School-University of Queensland, Ochsner Clinic Foundation; New Orleans LA USA
3. Division of Cardiology; University of Colorado School of Medicine, and CPC Clinical Research; Aurora CO USA
4. Centre for Population Health Sciences, The University of Edinburgh; UK
5. St George's Hospital; London UK
6. St Joseph Hospital; Orange CA USA
7. Academic Medical Center, University Hospital; Amsterdam The Netherlands
8. Department of Surgery; Faculty of Medicine and Health, Örebro University; Örebro Sweden