1. Faculty of Social Sciences; University of Helsinki; Helsinki Finland
2. Administrative Data Research Centre - Northern Ireland; Centre for Public Health; Queen's University Belfast; Belfast UK
3. SWPS University of Social Sciences and Humanities in Wroclaw; Wroclaw Poland
4. Finnish Institute of Occupational Health; Turku and Helsinki Finland
5. Department of Epidemiology and Public Health; University College London; London UK
6. Clinicum, Faculty of Medicine; University of Helsinki; Helsinki Finland
7. Department of Public Health; University of Turku; Turku University Hospital; Turku Finland