The mechanism for migration in Poland.
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D003710:Demography; D019049:Developed Countries; D004467:Economics; D004641:Emigration and Immigration; D005060:Europe; D005061:Europe, Eastern; D011044:Poland; D011057:Politics; D011153:Population; D011157:Population Dynamics; D012959:Socioeconomic Factors; D014171:Transients and Migrants
Demographic Factors; Developed Countries; Eastern Europe; Economic Conditions; Economic Factors; Europe; Labor Migration; Macroeconomic Factors; Migration; Migration, Internal; Poland; Political Factors; Population; Population Dynamics; Socioeconomic Factors