1. Section of Cardiology, Department of Medicine, Huddinge, Karolinska Institutet, Stockholm, Sweden
2. Department of Cardiology, Karolinska University Hospital Hälsovägen 4, Stockholm, Sweden
3. Uppsala Clinical Research Center and Department of Medical Sciences, Uppsala University, Dag Hammarskjölds Väg 38, Uppsala, Sweden
4. Department of Cardiology, Linköping University, Linköping, Sweden
5. Department of Medicine and Health Sciences, Faculty of Health Sciences, Linköping University, Linköping, Sweden
6. Department of Cardiology, Clinical Sciences, Lund University, Skane University Hospital, Akutgatan 4, Lund, Sweden
7. Department of Cardiology, Örebro University Hospital, Södra Grev Rosengatan, Örebro, Sweden
8. Department of Molecular and Clinical Medicine, Institution of Medicine, Sahlgrenska University Hospital, Blå Stråket, Göteborg, Sweden
9. Department of Clinical Sciences, Danderyds Hospital, Karolinska Institutet, Mörbygårdsvägen 88, Danderyd, Sweden