[Changes in the structure of the population of the Polish People's Republic according to sex and age].
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D002648:Child; D002675:Child, Preschool; D003710:Demography; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D008875:Middle Aged; D011044:Poland; D011153:Population; D011157:Population Dynamics; D012744:Sex Ratio; D014798:Vital Statistics
Izmeneniia v strukture naseleniia Pol'skoĭ Narodnoĭ Respubliki po polu i vozrastu