1. Department of Laboratory Medicine, Division of Clinical Pharmacology, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
2. Faculty of Caring Science, Worklife and Social Welfare, University of Borås, Borås, Sweden
3. Department of Medicine, Karolinska Institutet, Stockholm, Sweden
4. Karolinska Institutet and are working at S: t Görans hospital
5. The Ambulance Medical Service in Stockholm (AISAB), Academic EMS Stockholm and Department of Clinical Science and Education, Södersjukhuset Karolinska Institutet, Stockholm, Sweden