title: More nurses, better patient outcomes: why isn't it obvious?
authors.forename: L H
authors.initials: LH
authors.lastname: Aiken
mesh_terms: D006801:Humans; D007362:Intensive Care Units; D009741:Nursing Staff, Hospital / Q000600:supply & distribution*; D009936:Organizational Innovation; D017063:Outcome Assessment, Health Care; D010561:Personnel Staffing and Scheduling / Q000592:standards; D014481:United States; D000078329:Workforce