1. Department of Cardiology, Herlev and Gentofte Hospital University of Copenhagen Copenhagen Denmark
2. Section of Cardiology, San Francisco Veterans Affairs Medical Center and School of Medicine University of California San Francisco San Francisco CA USA
3. Vanderbilt University Medical Center Nashville TN USA
4. Department of Internal Medicine, Klinik für Innere Medizin III, Universitätsklinikum Des Saarlandes Saarland University Homburg/Saar Germany
5. Department of Medical Sciences IRCCS San Raffaele Pisana Rome Italy
6. Department of Biomedical Sciences, Faculty of Health and Medical Sciences University of Copenhagen Copenhagen Denmark