1. Department of Cardiology; University of Groningen, University Medical Center Groningen; Groningen The Netherlands
2. Department of Epidemiology; University of Groningen, University Medical Center Groningen; Groningen The Netherlands
3. Momentum Research; Durham NC USA
4. Novartis Pharmaceuticals Corporation; East Hanover NJ USA
5. Duke Clinical Research Institute; Durham NC USA
6. Athens University Hospital, Attikon; Athens Greece
7. University of California at San Diego; San Diego CA USA
8. Indiana University School of Medicine; Indianapolis IN USA
9. Medical University, Clinical Military Hospital; Wroclaw Poland
10. Novartis Pharma AG; Basel Switzerland
11. Department of Biostatistics; Columbia University; New York NY USA
12. University of California at San Francisco and San Francisco Veterans Affairs Medical Center; San Francisco CA USA
13. University of Brescia; Brescia Italy