[Aging:  a demographic fact].
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D017677:Age Distribution; D000367:Age Factors; D003710:Demography; D019049:Developed Countries; D005060:Europe; D005544:Forecasting; D011153:Population; D011154:Population Characteristics; D011157:Population Dynamics; D011640:Public Policy; D012106:Research; D013223:Statistics as Topic; D013557:Switzerland
Age Distribution--changes; Age Factors; Demographic Aging; Demographic Factors; Developed Countries; Estimation Technics; Europe; Policy; Population; Population Characteristics; Population Dynamics; Population Forecast; Population Policy; Population Projection; Research Methodology; Social Policy; Switzerland; Western Europe