1. Bevital A/S, Laboratoriebygget, 5021 Bergen, Norway
2. Section for Cardiology, Institute of Medicine, University of Bergen, 5021 Bergen, Norway
3. Centre for Clinical Research, Haukeland University Hospital, 5021 Bergen, Norway
4. Department of Heart Disease, Haukeland University Hospital, 5021 Bergen, Norway
5. Section for Pharmacology, Institute of Medicine, University of Bergen, 5021 Bergen, Norway