1. Department of Global Public Health, Karolinska Institutet, Stockholm, Sweden
2. Department of Clinical Medicine–Department of Clinical Epidemiology, Aarhus University, Aarhus, Denmark
3. Department of Public Health Sciences, Stockholm University, Stockholm, Sweden
4. Centre for Health Equity Studies, Stockholm University/Karolinska Institutet, Stockholm, Sweden
5. Department of Public Health and Nursing, Faculty of Medicine, Norwegian University of Science and Technology, Trondheim, Norway
6. Centre for Epidemiology and Community Medicine, Stockholm County Council, Stockholm, Sweden
7. Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden