title: [New and well-tried].
authors.forename: G K
authors.initials: GK
authors.lastname: Lang
authors.forename: G E
authors.initials: GE
authors.lastname: Lang
mesh_terms: D005858:Germany; D033181:Information Dissemination / Q000379:methods*; D008373:Manuscripts as Topic; D009885:Ophthalmology / Q000639:trends*; D010506:Periodicals as Topic / Q000639:trends*