1. Department of Cardiology; University Medical Center Groningen, University of Groningen; Groningen The Netherlands
2. Department of Epidemiology; University Medical Center Groningen, University of Groningen; Groningen The Netherlands
3. Department of Nephrology; University Medical Center Groningen, University of Groningen; Groningen The Netherlands
4. Clinical Pharmacology Department; La Pitié Salpetrière Hospital, Assistance Publique-Hôpitaux de Paris; Paris France
5. Department of Cardiology; Western Infirmary; Glasgow UK