title: Projecting the number of professional nurses required for in-hospital, direct care of older people, 1970-2050.
mesh_terms: D000368:Aged; D005851:Geriatric Nursing / Q000639:trends*; D006801:Humans; D007297:Inpatients; D009738:Nursing Service, Hospital; D014481:United States; D000078329:Workforce