The gatekeeper: an often overlooked part of reform.
CostCare's Medical Review Center, Boston, MA.
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D000328:Adult; D003362:Cost-Benefit Analysis / Q000191:economics; D003695:Delivery of Health Care / Q000458:organization & administration*; D006801:Humans; D008329:Managed Care Programs / Q000191:economics*; D008875:Middle Aged; D010342:Patient Acceptance of Health Care; D010819:Physician's Role; D010821:Physicians, Family; D012017:Referral and Consultation; D014481:United States; D014600:Utilization Review