HMOs irreversibly changing the role of the hospital.
Weil
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D002140:California; D005102:Health Expenditures / Q000706:statistics & numerical data; D006279:Health Maintenance Organizations / Q000458:organization & administration*; D006302:Health Services Research; D006777:Hospitals, Proprietary / Q000191:economics / Q000706:statistics & numerical data / Q000639:trends*; D006788:Hospitals, Voluntary / Q000191:economics / Q000706:statistics & numerical data / Q000639:trends*; D014600:Utilization Review / Q000706:statistics & numerical data