title: The optometrist as ophthalmic gatekeeper.
authors.forename: J D
authors.initials: JD
authors.lastname: Bartlett
mesh_terms: D003695:Delivery of Health Care / Q000639:trends*; D006801:Humans; D007349:Insurance, Health, Reimbursement; D009907:Optometry / Q000191:economics; D011320:Primary Health Care; D014481:United States