title: Managed care: evolution and involution.
authors.affiliation: Department of Nuclear Medicine, Christiana Hospital, Newark, USA.
authors.forename: R L
authors.initials: RL
authors.lastname: Meckelnburg
mesh_terms: D002140:California; D006279:Health Maintenance Organizations / Q000458:organization & administration; D006801:Humans; D008329:Managed Care Programs / Q000458:organization & administration*; D018511:Systems Integration; D014481:United States