title: [Changes in the demographic composition of Poland's population].
authors.forename: W
authors.initials: W
authors.lastname: Kondrat
mesh_terms: D003710:Demography; D019049:Developed Countries; D005060:Europe; D005061:Europe, Eastern; D011044:Poland; D011153:Population; D011154:Population Characteristics
keywords: Demographic Factors; Developed Countries; Eastern Europe; Europe; Poland; Population; Population Characteristics