title: The declining presence of the "young American"--a demographic reality, present and future.
authors.forename: S
authors.initials: S
authors.lastname: Lesse
mesh_terms: 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