Why primary care physicians should not be restrictive gatekeepers.
Manson
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Department of Medicine, Columbia-Presbyterian Medical Center, New York, New York, USA.
D003363:Cost Control; D004992:Ethics, Medical; D006801:Humans; D010821:Physicians, Family / Q000191:economics*; D011320:Primary Health Care / Q000191:economics; D012017:Referral and Consultation