The declining presence of the "young American"--a demographic reality, present and future.
Lesse
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D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D002648:Child; D003710:Demography; D005544:Forecasting; D006801:Humans; D008875:Middle Aged; D011157:Population Dynamics; D014481:United States