The physician's role in emergency service.
D000488:Allied Health Personnel / Q000193:education; D000552:Ambulances; D004502:Education, Medical, Continuing; D004630:Emergencies / Q000628:therapy; D004632:Emergency Medical Services / Q000592:standards*; D004636:Emergency Service, Hospital / Q000592:standards; D005392:First Aid; D006801:Humans; D007318:Inservice Training; D008511:Medicine; D009864:Ontario; D010820:Physicians; D013038:Specialization; D014187:Transportation of Patients; D014481:United States; D000078329:Workforce