title: Nursing in the 21st century: an introduction.
mesh_terms: D000488:Allied Health Personnel / Q000639:trends; D001509:Bed Occupancy; D005544:Forecasting; D006801:Humans; D009726:Nurses / Q000600:supply & distribution*; D009739:Nursing Services / Q000639:trends*; D009741:Nursing Staff, Hospital / Q000600:supply & distribution; D009743:Nursing, Practical / Q000639:trends; D014481:United States