title: National screening for diabetic retinopathy: clear vision needed.
authors: James
authors: J
authors: Mason
mesh_terms: D003362:Cost-Benefit Analysis; D003930:Diabetic Retinopathy / Q000175:diagnosis*; D004739:England; D006801:Humans; D007089:Image Enhancement / Q000379:methods; D008403:Mass Screening / Q000191:economics / Q000379:methods* / Q000592:standards; D009313:National Health Programs / Q000458:organization & administration*; D009887:Ophthalmoscopy / Q000379:methods; D011787:Quality of Health Care / Q000592:standards; D012606:Scotland; D015351:Vision Screening / Q000379:methods; D014852:Wales