1. Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
2. Department of Cardiology, Beijing Hospital, Beijing, PR China
3. Department of Medicine, Lidköping Hospital, Lidköping, Sweden
4. Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
5. Department of Public Health and Caring Sciences, Family Medicine and Preventive Medicine Section, Uppsala University, Uppsala, Sweden