The HMO in perspective.
D000574:American Medical Association; D003695:Delivery of Health Care; D005249:Fees and Charges; D005380:Financing, Government; D005382:Financing, Personal; D006123:Group Practice; D005102:Health Expenditures; D006279:Health Maintenance Organizations; D007348:Insurance, Health; D007883:Legislation, Medical; D010820:Physicians / Q000600:supply & distribution; D011787:Quality of Health Care; D012040:Regional Health Planning; D014481:United States