1. Centre for Psychiatry Research; Department of Clinical Neuroscience; Karolinska Institutet; Stockholm Sweden
2. Clinical Epidemiology Unit; Department of Medicine; Solna; Karolinska Institutet; Stockholm Sweden
3. Department of Clinical Sciences; Umeå University; Umeå Sweden
4. Division of Neurology; Department of Clinical Neuroscience; Karolinska Institutet; Stockholm Sweden
5. Centre for Pharmacoepidemiology; Department of Medicine; Solna; Karolinska Institutet; Stockholm Sweden
6. Clinical Epidemiology and Biostatistics; School of Medicine; Örebro University; Stockholm Sweden
7. Department of Epidemiology and Public Health; University College London; London UK