(2010-02-10) Fedorova, Natalia; Haavio-Mannila, Elina; Hemminki, Elina; Kesseli, Katja; Koponen, Päivikki; Martikainen, Pekka; Nikula, Minna; Pitkänen, Kari; Rotkirch, Anna; Koponen, Päivikki; Centre for Independent Social Research in St. Petersburg - Fedorova, Natalia; University of Helsinki. Department of Sociology - Haavio-Mannila, Elina; National Research and Development Centre for Welfare and Health (STAKES) - Hemminki, Elina; University of Helsinki. Department of Sociology - Kesseli, Katja; Finnish Institute for Health and Welfare - Koponen, Päivikki; University of Helsinki. Department of Sociology - Martikainen, Pekka; National Research and Development Centre for Welfare and Health (STAKES) - Nikula, Minna; University of Helsinki. Department of Sociology - Pitkänen, Kari; University of Helsinki. Department of Sociology - Rotkirch, Anna; National Institute for Health and Welfare - Koponen, Päivikki