Challenges confronting the future of emergency nursing.
D000375:Aging; D003363:Cost Control; D004632:Emergency Medical Services / Q000191:economics / Q000639:trends*; D004634:Emergency Medical Technicians / Q000706:statistics & numerical data; D005544:Forecasting; D006801:Humans; D009732:Nursing Care; D010820:Physicians / Q000600:supply & distribution