Population prospects for regions of the world.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D002648:Child; D003710:Demography; D005260:Female; D005298:Fertility; D006801:Humans; D008875:Middle Aged; D011155:Population Control; D011156:Population Density; D011158:Population Growth; D013997:Time Factors