A complex method for evaluation of the age structure.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D000375:Aging; D002648:Child; D002675:Child, Preschool; D004467:Economics; D004651:Employment; D004812:Epidemiologic Methods; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008017:Life Expectancy; D008297:Male; D008875:Middle Aged; D009787:Occupational Medicine; D011044:Poland; D011153:Population; D012737:Sex Factors; D013223:Statistics as Topic; D014937:Work