1. Clinicum Department of Public Health University of Helsinki Helsinki Finland
2. Helsinki Institute of Life Science University of Helsinki Helsinki Finland
3. Department of Epidemiology and Public Health University College London London UK
4. INSERM U1153 Epidemiology of Ageing and Neurodegenerative Diseases Université de Paris Paris France
5. Institute for Molecular Medicine Finland (FIMM) University of Helsinki Helsinki Finland
6. National Institute for Health and Welfare Helsinki Finland
7. Department of Public Health University of Turku Turku Finland
8. Turku University Hospital Turku Finland
9. Finnish Institute of Occupational Health Helsinki Finland