1. Department of Economics and Business Economics National Centre for Register‐Based Research Aarhus BSS Aarhus University Aarhus Denmark
2. Department of Clinical Medicine Aarhus University Aarhus Denmark
3. Centre for Integrated Register‐Based Research CIRRAU Aarhus University Aarhus Denmark
4. Department of Neurology Aarhus University Hospital Aarhus Denmark
5. Department of Clinical Epidemiology Aarhus University Denmark