title: HMOs and PPOs: an operational guide.
mesh_terms: D004502:Education, Medical, Continuing; D005376:Financial Management; D006075:Governing Board; D006279:Health Maintenance Organizations / Q000458:organization & administration*; D007348:Insurance, Health / Q000458:organization & administration*; D008331:Management Information Systems; D008389:Marketing of Health Services; D010560:Personnel Selection; D011243:Preferred Provider Organizations / Q000458:organization & administration*; D011785:Quality Assurance, Health Care; D014481:United States; D014600:Utilization Review