title: A look at out-of-state services.
authors.forename: Sylvia
authors.initials: S
authors.lastname: Lopez
mesh_terms: D000553:Ambulatory Care / Q000191:economics / Q000458:organization & administration*; D003284:Contract Services / Q000191:economics / Q000458:organization & administration*; D006801:Humans; D008484:Medicaid; D009825:Oklahoma; D010360:Patient Transfer / Q000191:economics; D012017:Referral and Consultation; D014481:United States