Emergency medical services: an integral part of ambulatory care services.
D000553:Ambulatory Care / Q000458:organization & administration*; D003362:Cost-Benefit Analysis; D004632:Emergency Medical Services; D004636:Emergency Service, Hospital / Q000458:organization & administration* / Q000706:statistics & numerical data; D006745:Hospital Bed Capacity, 300 to 499; D006769:Hospitals, General / Q000706:statistics & numerical data; D006801:Humans; D009519:New York City; D010044:Outpatient Clinics, Hospital / Q000458:organization & administration; D013597:Systems Analysis; D014218:Triage