Epidemiology
From the aFinnish Institute of Occupational Health, Centre of Expertise for Health and Work Ability, Helsinki, Finland; bDepartment of Occupational and Environmental Medicine, Bispebjerg Hospital University of Copenhagen, Copenhagen, Denmark; cDepartment of Occupational Medicine and Epidemiology, National Institute of Occupational Health, Oslo, Norway; and dInstitute of Health and Society, University of Oslo, Oslo, Norway.
Published: May 2016