| Institution: | 1. National Institute for Health and Welfare, Social Policy Research Unit, PO BOX 30, FI-00271, Helsinki, Finland;2. University of Turku, Department of Social Research, Faculty of Social Sciences, 20014, Finland;1. Population Research Unit, Department of Social Research, University of Helsinki, Finland;2. National Institute for Health and Welfare, Helsinki, Finland;3. Centre for Health Equity Studies (CHESS), Stockholm University and Karolinska Institutet, Sweden;4. Max Planck Institute for Demographic Research, Germany;1. Survey Research Center, Institute for Social Research, University of Michigan-Ann Arbor, P.O. Box 1248, Ann Arbor, MI 48106-1248, USA;2. Survey Methodology Program/Survey Research Center, Institute for Social Research, University of Michigan-Ann Arbor, P.O. Box 1248, Ann Arbor, MI 48106-1248, USA;1. Department of Political Science, Rutgers University, 89George Street, New Brunswick, NJ 08901, USA;2. School of Social Work, Columbia University, 1255 Amsterdam Avenue, New York, NY 10027, USA |
