1. Department of Public Health Sciences Equity and Health Policy Research Group Karolinska Institutet Stockholm Sweden
2. Centre for Epidemiology and Community Medicine Stockholm County Council Health Services Stockholm Sweden
3. Rinkeby Child Health Care Centre Stockholm County Council Health Services Stockholm Sweden
4. Stockholm County Council Child Health Services Stockholm Sweden
5. Department of Public Health Sciences Prevention, Intervention and Mechanisms in Public Health Research Group Karolinska Institutet Stockholm Sweden
6. Department of Learning, Informatics, Medical Management and Ethics Stockholm Centre for Healthcare Ethics Health Outcomes and Economic Evaluation Research Group Karolinska Institutet Stockholm Sweden
7. Centre for Health Economics, Informatics and Healthcare Research Stockholm County Council Health Services Stockholm Sweden