1. Department of Clinical Science and Education; Södersjukhuset; Karolinska Institutet; Stockholm Sweden
2. The Health and Medical Care Administration; Stockholm County Council; Stockholm Sweden
3. Department of Pediatrics; CLINTEC; Karolinska Institutet; Stockholm Sweden
4. Centre for Pharmacoepidemiology (CPE); Department of Medicine; Clinical Epidemiology Unit Solna; Karolinska Institutet; Stockholm Sweden
5. Division of Clinical Pharmacology; Karolinska University Hospital Solna; Stockholm Sweden
6. Karolinska Institutet Stroke Research Network at Södersjukhuset; Stockholm Sweden