title: A tale of two walls.
authors.forename: H
authors.initials: H
authors.lastname: Day
authors.forename: B
authors.initials: B
authors.lastname: Kinosian
mesh_terms: D004608:Eligibility Determination / Q000592:standards*; D006699:Home Care Services / Q000592:standards*; D006801:Humans; D006278:Medicare / Q000191:economics / Q000592:standards*; D018579:Patient Selection; D010819:Physician's Role; D012017:Referral and Consultation; D014481:United States