1. StatFinn & EPID Research, Prästgårdsgatan 28, 431 44 Mölndal, Sweden
2. StatFinn & EPID Research, Espoo, Finland
3. Karolinska Institute, Stockholm, Sweden
4. Novartis Pharma AG, Evidence and Launch Excellence, Basel, Switzerland
5. Merck KGaA, Darmstadt, Germany
6. Biogen Idec Ltd, Maidenhead, UK
7. Bayer AG, Berlin, Germany
8. University of Helsinki, Helsinki, Finland
9. Clinical Neurosciences, Neurology, University of Helsinki, Helsinki, Finland
10. Helsinki University Hospital, Helsinki, Finland
11. Department of Clinical Medicine, University of Bergen, Bergen, Norway
12. Department of Neurology, Haukeland University Hospital, Bergen, Norway
13. Department of Medicine, Karolinska Institutet, Solna, Stockholm, Sweden
14. Centre for Psychiatry Research, Karolinska Institutet, Solna, Stockholm, Sweden
15. Stockholm Health Care Services, Stockholm, Sweden
16. School of Medical Sciences, Clinical Epidemiology and Biostatistics, Örebro University, Sweden
17. Department of Epidemiology and Public Health, University College London, UK