[The problem of defining changes in demographic old age in Poland in a spatial context].
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D000328:Adult; D000367:Age Factors; D000368:Aged; D003710:Demography; D019049:Developed Countries; D005060:Europe; D005061:Europe, Eastern; D005843:Geography; D011044:Poland; D011153:Population; D011154:Population Characteristics
Adult; Age Factors; Aged; Demographic Factors; Developed Countries; Eastern Europe; Europe; Geographic Factors; Poland; Population; Population Characteristics; Spatial Distribution