title: Fortune 500 and insurers propel HMO growth.
authors.forename: J
authors.initials: J
authors.lastname: Gamlin
mesh_terms: D006279:Health Maintenance Organizations / Q000191:economics*; D007221:Industry; D007341:Insurance; D007343:Insurance Carriers; D009786:Occupational Health Services / Q000458:organization & administration*; D014481:United States