title: [Shifts in the number and natural migration of the population of Polish People's Republic].
mesh_terms: D000293:Adolescent; D000328:Adult; 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; D011158:Population Growth; D014171:Transients and Migrants; D014798:Vital Statistics
vernacular_title: Sdvigi v chislennosti i estestvennom dvizhenii naseleniia Pol'skoĭ Narodnoĭ Respubliki.