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no DOI — not checkedHealth, ageing and retirement in Europe -First results from the Survey of Health, Ageing and Retirement in Europe. Mannheim Research Institute for the Economics of Aging, Mannheim. B�rsch-Supan A
no DOI — not checkedref9
no DOI — not checkedref10
no DOI — not checkedJoint report by the Commission and the Council
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no DOI — not checkedDemography of aging
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no DOI — not checkedPreparing for an Aging World: The Case for Cross-National Research
no DOI — not checkedActive ageing: A policy framework. World Health Organization
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