title: International guidelines: all for one and one for all?
authors.forename: Mark O M
authors.initials: MO
authors.lastname: Tso
authors.forename: Richard
authors.initials: R
authors.lastname: Abbott
authors.forename: Bruce
authors.initials: B
authors.lastname: Spivey
mesh_terms: D000047:Academies and Institutes / Q000592:standards; D005128:Eye Diseases / Q000628:therapy*; D006801:Humans; D038622:Internationality; D009885:Ophthalmology / Q000592:standards*; D017410:Practice Guidelines as Topic; D011320:Primary Health Care / Q000592:standards; D014481:United States; D014944:World Health Organization