title: Trends and changing roles in emergency medicine.
authors.affiliation: Hewlett-Packard Labs, USA.
authors.forename: B
authors.initials: B
authors.lastname: Shen
mesh_terms: D004465:Economic Competition; D004635:Emergency Medicine / Q000639:trends*; D004636:Emergency Service, Hospital / Q000191:economics / Q000458:organization & administration / Q000639:trends*; D004991:Ethics, Institutional; D019317:Evidence-Based Medicine; D005544:Forecasting; D013677:Medical Laboratory Science / Q000639:trends; D009936:Organizational Innovation; D017410:Practice Guidelines as Topic; D014481:United States