Affiliation: | a Occupational and Environmental Medicine, Department of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden b Department of Public Health and Clinical Medicine, Epidemiology and Global Health, Umeå University, Umeå, Sweden c Murdoch Childrens Research Institute, Melbourne, Australia d Centre for Molecular, Environmental, Genetic and Analytic Epidemiology, School of Population Health, University of Melbourne, Melbourne, Australia e Department of Research and Development, Västernorrland County Council, Sundsvall, Sweden f Department of Woman and Child Health, Karolinska Institute, Stockholm, Sweden g Centre for Health Equity Studies (CHESS), Karolinska Institutet/Stockholm University, Stockholm, Sweden h Centre for Epidemiology, National Board of Health and Welfare, Stockholm, Sweden |