title: Entering the HMO arena: options for hospitals.
mesh_terms: D002391:Catchment Area, Health; D003363:Cost Control / Q000639:trends; D006279:Health Maintenance Organizations / Q000191:economics*; D006739:Hospital Administration / Q000191:economics*; D006754:Hospital Restructuring / Q000191:economics*; D006801:Humans; D008389:Marketing of Health Services; D009935:Organizational Affiliation / Q000191:economics; D012306:Risk; D014481:United States