Texas HMOs and PPOs: coming on strong in the '90s.
Griffin
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D006279:Health Maintenance Organizations / Q000458:organization & administration / Q000639:trends*; D006801:Humans; D007348:Insurance, Health / Q000639:trends; D010820:Physicians; D011243:Preferred Provider Organizations / Q000458:organization & administration / Q000639:trends*; D013781:Texas