1. Cardiology Unit, Karolinska University Hospital, Department of Medicine, Karolinska Institute, Stockholm, Sweden
2. Department of Psychiatry, St Görans Hospital, Department of Clinical Neuroscience, Karolinska Institute, Stockholm, Sweden
3. Department of Neurobiology, Care Science and Society, Karolinska Institute, Stockholm, Sweden
4. Cardiology Unit, Karolinska University Hospital, Department of Medicine, Karolinska Institute, Stockholm, Sweden,