1. Department of Neurology; Aarhus University Hospital; Aarhus Denmark
2. Department of Public Health; Section for Biostatistics; Aarhus University; Aarhus Denmark
3. Research Unit and Section for General Practice; Department of Public Health; Aarhus University; Aarhus Denmark
4. Department of Public Health; Section of Epidemiology; Aarhus University; Aarhus Denmark
5. Department of Economics and Business; National Center for Register-based Research; Aarhus University; Aarhus Denmark
6. Lundbeck Foundation Initiative for Integrative Psychiatric Research; iPSYCH; Aarhus University; Aarhus Denmark