title: [Population structure according to age and economic activity in developed countries].
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D003604:Czechoslovakia; D003710:Demography; D004467:Economics; D004651:Employment; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D008875:Middle Aged; D011156:Population Density; D011158:Population Growth; D012179:Retirement
vernacular_title: Populacní struktura podle vĕku a ekonimické aktivity ve vyspĕlých zemích.