1. Department of Internal Medicine Creighton University Omaha Nebraska USA
2. Department of Internal Medicine, Division of Cardiology MercyOne Medical Center Des Moines Iowa USA
3. Department of Internal Medicine, Division of Cardiology University of Nebraska Medical Center Omaha Nebraska USA
4. Medical University of Vienna Vienna Austria
5. Department of Experimental and Clinical Pharmacology, Center for Preclinical Research and Technology CEPT Medical University of Warsaw Warsaw Poland
6. Keele Cardiovascular Research Group, Center for Prognosis Research Keele University Stoke on Trent UK
7. Cornell University Brooklyn New York USA
8. Minneapolis Heart Institute Minneapolis Minnesota USA
9. Department of Internal Medicine, Division of Cardiology Brown University Providence Rhode Island USA
10. Brigham and Women's Hospital, Harvard Medical School Boston Massachusetts USA