1. British Heart Foundation Cardiovascular Research Centre; University of Glasgow; Glasgow UK
2. University of Groningen, Department of Cardiology; University Medical Center Groningen; Groningen The Netherlands
3. Brigham and Women's Hospital; Boston MA USA
4. University of Gothenburg; Gothenburg Sweden
5. Population Health Research Institute; McMaster University; Hamilton Canada
6. Cleveland Clinic Foundation; Cleveland OH USA
7. Faculty of Medicine; University of Montreal; Montreal Canada
8. Duke Clinical Research Institute; Duke University Medical Center; Durham NC USA