Hospital-based ambulatory care: status and perspective on the future.
D000553:Ambulatory Care / Q000458:organization & administration*; D003153:Community Health Services / Q000191:economics*; D009518:New York; D010044:Outpatient Clinics, Hospital / Q000191:economics*; D013221:State Health Plans / Q000331:legislation & jurisprudence; D014481:United States