?:authorAffiliation
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[\'Department of Public Health and Welfare, Finnish Institute for Health and Welfare, P.O. Box 30, FI-00271 Helsinki, Finland. Electronic address: marja.holm@thl.fi.\', \'Department of Public Health and Welfare, Finnish Institute for Health and Welfare, P.O. Box 30, FI-00271 Helsinki, Finland. Electronic address: paivi.sanio@thl.fi.\', \'Department of Public Health and Welfare, Finnish Institute for Health and Welfare, P.O. Box 30, FI-00271 Helsinki, Finland. Electronic address: suvi.parikka@thl.fi.\', \'Department of Public Health and Welfare, Finnish Institute for Health and Welfare, P.O. Box 30, FI-00271 Helsinki, Finland. Electronic address: seppo.koskinen@thl.fi.\']
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