title: Growing diversification in HMOs, 1988-1994.
authors.forename: J
authors.initials: J
authors.lastname: Gabel
authors.forename: H
authors.initials: H
authors.lastname: Whitmore
authors.forename: C
authors.initials: C
authors.lastname: Bergsten
authors.forename: L P
authors.initials: LP
authors.lastname: Grimm
mesh_terms: D019538:Health Care Surveys; D006279:Health Maintenance Organizations / Q000458:organization & administration / Q000706:statistics & numerical data / Q000639:trends*; D006801:Humans; D007342:Insurance Benefits; D008389:Marketing of Health Services; D008484:Medicaid; D016345:Medicare Part B; D009936:Organizational Innovation; D017060:Patient Satisfaction; D011243:Preferred Provider Organizations; D011357:Product Line Management / Q000639:trends*; D014481:United States; D014600:Utilization Review; D014942:Workers' Compensation