title: Managed-care shake-up. Two major Mich. players leaving insurance business.
authors.forename: Laura B
authors.initials: LB
authors.lastname: Benko
mesh_terms: D019981:Health Care Sector / Q000458:organization & administration / Q000639:trends*; D006273:Health Facility Merger; D008329:Managed Care Programs / Q000458:organization & administration / Q000639:trends*; D008824:Michigan; D010067:Ownership