The effects of medical society control of Blue Shield on fees in the physician service market: some preliminary evidence.
D000704:Analysis of Variance; D054598:Blue Cross Blue Shield Insurance Plans / Q000458:organization & administration*; D005251:Fees, Medical / Q000639:trends*; D007357:Insurance, Physician Services / Q000458:organization & administration*; D008962:Models, Theoretical; D012955:Societies, Medical; D014481:United States