1. Department of Internal Medicine, Karolinska Institutet, Stockholm, Sweden
2. Department of Emergency Medicine, Karolinska University Hospital, Huddinge, Stockholm, Sweden
3. Division of Family Medicine & Primary Care, Department of Neurobiology, Care Sciences & Society, Karolinska Institutet, Huddinge, Sweden
4. Department of Medical Sciences, Uppsala University, Uppsala, Sweden
5. School of Health & Social Studies, Dalarna University, Falun, Sweden