Physician response to the formal referral policy of a Blue Shield capitation plan.
D001291:Attitude of Health Personnel; D054598:Blue Cross Blue Shield Insurance Plans / Q000458:organization & administration*; D002204:Capitation Fee; D007357:Insurance, Physician Services / Q000458:organization & administration*; D012017:Referral and Consultation / Q000191:economics*; D014922:Wisconsin