1. Department of Clinical Science and Research; Karolinska Institutet; Stockholm Sweden
2. Division of Internal Medicine at Södersjukhuset; Stockholm Sweden
3. Department of Emergency Medicine; Karolinska University Hospital; Stockholm Sweden
4. Department of Internal Medicine; Karolinska Institutet; Stockholm Sweden
5. Institute of Medicine; University of Gothenburg, Sahlgrenska University Hospital; Göteborg Sweden
6. Centre of Registers in Region Västra Götaland; Göteborg Sweden
7. Section of Cardiothoracic Surgery; Karolinska University Hospital; Stockholm Sweden
8. Department of Molecular Medicine and Surgery; Karolinska Institutet; Stockholm Sweden