title: What we don't know may hurt us: interventions for frequent emergency department users.
authors.forename: Maria C
authors.initials: MC
authors.lastname: Raven
mesh_terms: D004636:Emergency Service, Hospital; D006297:Health Services Accessibility; D006300:Health Services Misuse; D006703:Ill-Housed Persons; D017721:Hospital Costs; D006801:Humans; D017057:Medically Uninsured