[On the aged population:  with regard to the Year of the Elderly].
Kuciarska-ciesielska
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D000328:Adult; D000367:Age Factors; D000368:Aged; D003710:Demography; D019049:Developed Countries; D005060:Europe; D005061:Europe, Eastern; D011044:Poland; D011153:Population; D011154:Population Characteristics