HMOs don't just happen.
D001291:Attitude of Health Personnel; D003142:Communication; D003256:Community Participation; D004470:Economics, Medical; D006279:Health Maintenance Organizations; D006761:Hospitals; D006801:Humans; D008505:Medical Staff, Hospital; D009825:Oklahoma; D009934:Organization and Administration; D009935:Organizational Affiliation; D010564:Personnel, Hospital