title: Health care's new 'middlemen' between elderly patients and their physicians.
authors.forename: L
authors.initials: L
authors.lastname: Champlin
mesh_terms: D006299:Health Services for the Aged / Q000458:organization & administration*; D006801:Humans; D006278:Medicare; D010347:Patient Care Planning / Q000379:methods*; D014481:United States