The role of health insurance in the physicians' services market.
D054598:Blue Cross Blue Shield Insurance Plans; D003669:Deductibles and Coinsurance; D005245:Fee Schedules; D005251:Fees, Medical; D007357:Insurance, Physician Services; D006278:Medicare; D008511:Medicine; D008962:Models, Theoretical; D013038:Specialization; D013514:Surgical Procedures, Operative; D014481:United States