1. Duke University; Durham NC USA
2. Duke Clinical Research Institute; Durham NC USA
3. Cleveland Clinic Foundation; Cleveland OH USA
4. Canadian VIGOUR Centre
5. University of Alberta; Edmonton Alberta Canada
6. Stony Brook University Hospital; Stony Brook; NY USA
7. Glasgow Cardiovascular Research Centre
8. University of Glasgow,; Glasgow UK
9. San Francisco VA Hospital, University of California, San Francisco and San Francisco VAMC, San Francisco; CA USA
10. University of Groningen, Groningen, the Netherlands
11. University of Brescia; Brescia Italy