1. Department of Neurology, Aarhus University Hospital, Aarhus, Denmark
2. Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark
3. The National Centre for Register-Based Research, Department of Economics and Business Economics, Business and Social Science, Aarhus University, Aarhus, Denmark
4. The Lundbeck Foundation Initiative for Integrative Psychiatric Research, iPSYCH, Aarhus, Denmark
5. The Centre for Integrated Register-Based Research (CIRRAU), Aarhus University, Aarhus, Denmark